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It Is Not The Most Intellectual Of The Species That Survives; It Is Not The Strongest That Survives; But The Species That Survives Is The One That Is Able Best To Adapt And Adjust To The Changing Environment In Which It Finds Itself.

-Charles Darwin

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It Is Not The

Charles Darwin

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It Is Not The Most Intellectual Of The Species That Survives; It Is Not The Strongest That Survives; But The Species That Survives Is The One That Is Able Best To Adapt And Adjust To The Changing Environment In Which It Finds Itself.

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Changing Environment

More From Charles Darwin

I Have Been Speculating Last Night What Makes A Man A Discoverer Of Undiscovered Things. As Far As I Can Conjecture The Art Consists In Habitually Searching For The Causes And Meaning Of Everything Which Occurs.

One Hand Has Surely Worked Throughout The Universe.

To Kill An Error Is As Good A Service As, And Sometimes Even Better Than, The Establishing Of A New Truth Or Fact.

New Relationship

I Agree With Agassiz That Dogs Possess Something Very Like Conscience.

I Look At The Natural Geological Record As A History Of The World Imperfectly Kept And Written In A Changing Dialect; Of This History We Possess The Last Volume Alone, Relating Only To Two Or Three Countries. Of This Volume, Only Here And There A Short Chapter Has Been Preserved; And Of Each Page, Only Here And There A Few Lines.

Nothing Could Have Been Worse For The Development Of My Mind Than Dr. Butler's School, As It Was Strictly Classical, Nothing Else Being Taught, Except A Little Ancient Geography And History. The School As A Means Of Education To Me Was Simply A Blank. During My Whole Life I Have Been Singularly Incapable Of Mastering Any Language. Especial Attention Was Paid To Versemaking, And This I Could Never Do Well. I Had Many Friends, And Got Together A Good Collection Of Old Verses, Which By Patching Together, Sometimes Aided By Other Boys, I Could Work Into Any Subject.

How Paramount The Future Is To The Present When One Is Surrounded By Children.

As Buds Give Rise By Growth To Fresh Buds, And These, If Vigorous, Branch Out And Overtop On All Sides Many A Feebler Branch, So By Generation I Believe It Has Been With The Great Tree Of Life, Which Fills With Its Dead And Broken Branches The Crust Of The Earth, And Covers The Surface With Its Ever Branching And Beautiful Ramifications.

The Man That Created The Theory Of Evolution By Natural Selection Was Thrown Out By His Dad Because He Wanted Him To Be A Doctor. Gawd, Parents Haven't Changed Much.

The More We Know Of The Fixed Laws Of Nature The More Incredible Do Miracles Become, - That The Men At That Time Were Ignorant And Credulous To A Degree Almost Incomprehensible By Us, - That The Gospels Cannot Be Proved To Have Been Written Simultaneously With The Events, - That They Differ In Many Important Details, Far Too Important As It Seemed To Me To Be Admitted As The Usual Inaccuracies Of Eye-witnesses; - By Such Reflections As These... I Gradually Came To Disbelieve In Christianity As A Divine Revelation.

I Am Quite Conscious That My Speculations Run Beyond The Bounds Of True Science....it Is A Mere Rag Of An Hypothesis With As Many Flaw[s] & Holes As Sound Parts.

We Feel Surprise When Travellers Tell Us Of The Vast Dimensions Of The Pyramids And Other Great Ruins, But How Utterly Insignificant Are The Greatest Of These, When Compared To These Mountains Of Stone Accumulated By The Agency Of Various Minute And Tender Animals!

This Preservation Of Favourable Variations And The Destruction Of Injurious Variations, I Call Natural Selection, Or The Survival Of The Fittest. Variations Neither Useful Nor Injurious Would Not Be Affected By Natural Selection And Would Be Left A Fluctuating Element.

The Most Energetic Workers I Have Encountered In My World Travels Are The Vegetarian Miners Of Chile.

I Love Fools' Experiments. I Am Always Making Them.

Theory Of Evolution

I Cannot Persuade Myself That A Beneficient And Omnipotent God Would Have Designedly Created...that A Cat Should Play With Mice.

We Have Seen That The Senses And Intuitions, The Various Emotions And Faculties, Such As Love, Memory, Attention And Curiosity, Imitation, Reason, Etc., Of Which Man Boasts, May Be Found In An Incipient, Or Even Sometimes In A Well-developed Condition, In The Lower Animals.

It Is Interesting To Contemplate An Entangled Bank Clothed With Many Plants Of Many Kinds With Birds Singing On The Bushes, With Various Insects Flitting About And With Worms Crawling Through The Damp Earth And To Reflect That These Elaborately Constructed Forms So Different From Each Other And Dependent On Each Other And So Complex A Manner Have All Been Produced By Laws Acting Around Us.

Farewell Australia! You ... Are Too Great And Ambitious For Affection, Yet Not Great Enough For Respect. I Leave Your Shores Without Sorrow Or Regret.

It Is Mere Rubbish Thinking, At Present, Of Origin Of Life; One Might As Well Think Of Origin Of Matter.

Nevertheless So Profound Is Our Ignorance, And So High Our Presumption, That We Marvel When We Hear Of The Extinction Of An Organic Being; And As We Do Not See The Cause, We Invoke Cataclysms To Desolate The World, Or Invent Laws On The Duration Of The Forms Of Life!

Among The Scenes Which Are Deeply Impressed On My Mind, None Exceed In Sublimity The Primeval [tropical] Forests, ... Temples Filled With The Varied Productions Of The God Of Nature. No One Can Stand In These Solitudes Unmoved, And Not Feel That There Is More In Man Than The Mere Breath Of His Body.

On The Theory Of Natural Selection We Can Clearly Understand The Full Meaning Of That Old Canon In Natural History, “natura Non Facit Saltum.” This Canon, If We Look Only To The Present Inhabitants Of The World, Is Not Strictly Correct, But If We Include All Those Of Past Times, It Must By My Theory Be Strictly True.

I Have Deeply Regretted That I Did Not Proceed Far Enough At Least To Understand Something Of The Great Leading Principles Of Mathematics, For Men Thus Endowed Seem To Have An Extra Sense.

To Suppose That The Eye, With All Its Inimitable Contrivances For Adjusting The Focus To Different Distances, For Admitting Different Amounts Of Light, And For The Correction Of Spherical And Chromatic Aberration, Could Have Been Formed By Natural Selection, Seems, I Freely Confess, Absurd In The Highest Possible Degree.

Man Tends To Increase At A Greater Rate Than His Means Of Subsistence.

Delight Itself, However, Is A Weak Term To Express The Feelings Of A Naturalist.

It Appears To Me (whether Rightly Or Wrongly) That Direct Arguments Against Christianity And Theism Produce Hardly Any Effect On The Public; And Freedom Of Thought Is Best Promoted By The Gradual Illumination Of Men's Minds, Which Follows From The Advance Of Science.

I Hate A Barnacle As No Man Ever Did Before, Not Even A Sailor In A Slow-sailing Ship.

The Highest Possible Stage In Moral Culture Is When We Recognize That We Ought To Control Our Thoughts.

We Will Now Discuss In A Little More Detail The Struggle For Existence.

It Is Really Laughable To See What Different Ideas Are Prominent In Various Naturalists' Minds, When They Speak Of 'species'; In Some, Resemblance Is Everything And Descent Of Little Weight-in Some, Resemblance Seems To Go For Nothing, And Creation The Reigning Idea-in Some, Descent Is The Key,-in Some, Sterility An Unfailing Test, With Others It Is Not Worth A Farthing. It All Comes, I Believe, From Trying To Define The Undefinable.

Nothing Exists For Itself Alone, But Only In Relation To Other Forms Of Life

The Love Of A Dog For His Master Is Notorious; In The Agony Of Death He Has Been Known To Caress His Master, And Everyone Has Heard Of The Dog Suffering Under Vivisection, Who Licked The Hand Of The Operator; This Man, Unless He Had A Heart Of Stone, Must Have Felt Remorse To The Last Hour Of His Life.

It's Not The Strongest, But The Most Adaptable That Survive.

... Probably All The Organic Beings Which Have Ever Lived On This Earth Have Descended From Some One Primordial Form, Into Which Life Was First Breathed.

Daily It Is Forced Home On The Mind Of The Biologist That Nothing, Not Even The Wind That Blows, Is So Unstable As The Level Of The Crust Of This Earth.

The Limit Of Man S Knowledge In Any Subject Possesses A High Interest Which Is Perhaps Increased By Its Close Neighbourhood To The Realms Of Imagination.

As Man Advances In Civilization, And Small Tribes Are United Into Larger Communities, The Simplest Reason Would Tell Each Individual That He Ought To Extend His Social Instincts And Sympathies To All Members Of The Same Nation, Though Personally Unknown To Him. This Point Being Once Reached, There Is Only An Artificial Barrier To Prevent His Sympathies Extending To The Men Of All Nations And Races.

I Suppose You Are Two Fathoms Deep In Mathematics, And If You Are, Then God Help You. For So Am I, Only With This Difference: I Stick Fast In The Mud At The Bottom, And There I Shall Remain.

Thus We Have Given To Man A Pedigree Of Prodigious Length, But Not, It May Be Said, Of Noble Quality.

The Survival Or Preservation Of Certain Favoured Words In The Struggle For Existence Is Natural Selection.

It Is A Fatal Fault To Reason Whilst Observing, Though So Necessary Beforehand And So Useful Afterwards.

A Novel According To My Taste, Does Not Come Into The Moderately Good Class Unless It Contains Some Person Whom One Can Thoroughly Love - And If A Pretty Woman, All The Better.

Nothing Is Easier Than To Admit In Words The Truth Of The Universal Struggle For Life, Or More Difficult - At Least I Have Found It So - Than Constantly To Bear This Conclusion In Mind...we Behold The Face Of Nature Bright With Gladness...we Do Not See, Or We Forget, That The Birds Which Are Idly Singing Round Us Mostly Live On Insects And Seeds, And Are Thus Constantly Destroying Life.

Jealousy Was Plainly Exhibited When I Fondled A Large Doll, And When I Weighed His Infant Sister, He Being Then 15? Months Old. Seeing How Strong A Feeling Of Jealousy Is In Dogs, It Would Probably Be Exhibited By Infants At Any Earlier Age Than Just Specified If They Were Tried In A Fitting Manner

Language Is An Art, Like Brewing Or Baking.... It Certainly Is Not A True Instinct, For Every Language Has To Be Learnt.

There Is A Grandeur In This View Of Life, From So Simple A Beginning Endless Forms Most Beautiful Are Being Evolved

How Fleeting Are The Wishes And Efforts Of Man! How Short His Time! And Consequently How Poor Will His Products Be, Compared With Those Accumulated By Nature During Whole Geological Periods. Can We Wonder, Then, That Nature's Productions Should Be Far 'truer' In Character Than Man's Productions; That They Should Be Infinitely Better Adapted To The Most Complex Conditions Of Life, And Should Plainly Bear The Stamp Of Far Higher Workmanship?

A Man's Friendships Are One Of The Best Measures Of His Worth.

What Wretched Doings Come From The Ardor Of Fame; The Love Of Truth Alone Would Never Make One Man Attack Another Bitterly.

Any One Whose Disposition Leads Him To Attach More Weight To Unexplained Difficulties Than To The Explanation Of Facts Will Certainly Reject My Theory.

As Some Of The Lowest Organisms, In Which Nerves Cannot Be Detected, Are Capable Of Perceiving Light, It Does Not Seem Impossible That Certain Sensitive Elements In Their Sarcode Should Become Aggregated And Developed Into Nerves, Endowed With This Special Sensibility.

There Is Grandeur In This View Of Life, With Its Several Powers, Having Been Originally Breathed Into A Few Forms Or Into One; And That, Whilst This Planet Has Gone Cycling On According To The Fixed Law Of Gravity, From So Simple A Beginning Endless Forms Most Beautiful And Most Wonderful Have Been, And Are Being, Evolved.

I Am Aware That The Assumed Instinctive Belief In God Has Been Used By Many Persons As An Argument For His Existence. The Idea Of A Universal And Beneficent Creator Does Not Seem To Arise In The Mind Of Man, Until He Has Been Elevated By Long-continued Culture.

I Have Just Finished My Sketch Of My Species Theory. If As I Believe That My Theory Is True & If It Be Accepted Even By One Competent Judge, It Will Be A Considerable Step In Science. I Therefore Write This, In Case Of My Sudden Death, As My Most Solemn & Last Request, Which I Am Sure You Will Consider The Same As If Legally Entered In My Will, That You Will Devote 400£ To Its Publication & Further Will Yourself, Or Through Hensleigh [wedgwood], Take Trouble In Promoting It.

Man May Be Excused For Feeling Some Pride At Having Risen, Though Not Through His Own Exertions, To The Very Summit Of The Organic Scale; And The Fact Of His Having Thus Risen, Instead Of Having Been Aboriginally Placed There, May Give Him Hopes For A Still Higher Destiny In The Distant Future.

Believing As I Do That Man In The Distant Future Will Be A Far More Perfect Creature Than He Now Is, It Is An Intolerable Thought That He And All Other Sentient Beings Are Doomed To Complete Annihilation After Such Long-continued Slow Progress.

My Mind Seems To Have Become A Kind Of Machine For Grinding General Laws Out Of Large Collections Of Facts.

He Who Understands Baboon Would Do More Towards Metaphysics Than Locke.

So Great Is The Economy Of Nature, That Most Flowers Which Are Fertilised By Crepuscular Or Nocturnal Insects Emit Their Odour Chiefly Or Exclusively In The Evening.

From The War Of Nature, From Famine And Death, The Most Exalted Object Which We Are Capable Of Conceiving, Namely, The Production Of Higher Animals, Directly Follows.

I Ought, Or I Ought Not, Constitute The Whole Of Morality.

Man Is Descended From A Hairy, Tailed Quadruped, Probably Arboreal In Its Habits.

I Fully Agree With All That You Say On The Advantages Of Spencer's Excellent Expression Of 'the Survival Of The Fittest.' This, However, Had Not Occurred To Me Till Reading Your Letter. It Is, However, A Great Objection To This Term That It Cannot Be Used As A Substantive Governing A Verb; And That This Is A Real Objection I Infer From H. Spencer Continually Using The Words, Natural Selection.

Man Scans With Scrupulous Care The Character And Pedigree Of His Horses, Cattle, And Dogs Before He Matches Them; But When He Comes To His Own Marriage He Rarely, Or Never, Takes Any Such Care.

[herschel And Humboldt] Stirred Up In Me A Burning Zeal To Add Even The Most Humble Contribution To The Noble Structure Of Natural Science. No One Or A Dozen Other Books Influenced Me Nearly So Much As These Two. I Copied Out From Humboldt Long Passages About Teneriffe And Read Them Aloud On One Of [my Walking Excursions].

Free Will Is To Mind What Chance Is To Matter.

It Is Scarcely Possible To Doubt That The Love Of Man Has Become Instinctive In The Dog.

We May Confidently Come To The Conclusion, That The Forces Which Slowly And By Little Starts Uplift Continents, And That Those Which At Successive Periods Pour Forth Volcanic Matter From Open Orifices, Are Identical.

The Formation Of Different Languages And Of Distinct Species And The Proofs That Both Have Been Developed Through A Gradual Process, Are Curiously Parallel.

I Trust And Believe That The Time Spent In This Voyage ... Will Produce Its Full Worth In Natural History; And It Appears To Me The Doing What Little We Can To Increase The General Stock Of Knowledge Is As Respectable An Object Of Life, As One Can In Any Likelihood Pursue.

The Instruction At Edinburgh Was Altogether By Lectures, And These Were Intolerably Dull, With The Exception Of Those On Chemistry.

Ignorance More Frequently Begets Confidence Than Does Knowledge: It Is Those Who Know Little, And Not Those Who Know Much, Who So Positively Assert That This Or That Problem Will Never Be Solved By Science.

The Question Of Whether There Exists A Creator And Ruler Of The Universe Has Been Answered In The Affirmative By Some Of The Highest Intellects That Have Ever Existed.

It May Be Conceit, But I Believe The Subject Will Interest The Public, And I Am Sure That The Views Are Original.

An Agnostic Would Be The More Correct Description Of My State Of Mind.

He Who Is Not Content To Look, Like A Savage, At The Phenomena Of Nature As Disconnected, Cannot Any Longer Believe That Man Is The Work Of A Separate Act Of Creation ... Man Is The Co-descendant With Other Mammals Of A Common Progenitor.

In My Simplicity, I Remember Wondering Why Every Gentleman Did Not Become An Ornithologist.

If A Person Asked My Advice, Before Undertaking A Long Voyage, My Answer Would Depend Upon His Possessing A Decided Taste For Some Branch Of Knowledge, Which Could By This Means Be Advanced. No Doubt It Is A High Satisfaction To Behold Various Countries And The Many Races Of Mankind, But The Pleasures Gained At The Time Do Not Counterbalance The Evils.

May We Not Suspect That The Vague But Very Real Fears Of Children, Which Are Quite Independent Of Experience, Are The Inherited Effects Of Real Dangers And Abject Superstitions During Ancient Savage Times?

I Can Remember The Very Spot In The Road, Whilst In My Carriage, When To My Joy The Solution Occurred To Me.

Every New Body Of Discovery Is Mathematical In Form, Because There Is No Other Guidance We Can Have.

I Believe We Were All Glad To Leave New Zealand. It Is Not A Pleasant Place. Amongst The Natives There Is Absent That Charming Simplicity .... And The Greater Part Of The English Are The Very Refuse Of Society.

Worms Have Played A More Important Part In The History Of The World Than Humans Would At First Suppose.

But Geology Carries The Day: It Is Like The Pleasure Of Gambling, Speculating, On First Arriving, What The Rocks May Be; I Often Mentally Cry Out 3 To 1 Tertiary Against Primitive; But The Latter Have Hitherto Won All The Bets.

...all Nature Is Perverse & Will Not Do As I Wish It.

Man With All His Noble Qualities, With Sympathy Which Feels For The Most Debased, With Benevolence Which Extends Not Only To Other Men But To The Humblest Living Creature, With His God-like Intellect Which Has Penetrated Into The Movements And Constitution Of The Solar System- With All These Exalted Powers- Man Still Bears In His Bodily Frame The Indelible Stamp Of His Lowly Origin.

If It Could Be Demonstrated That Any Complex Organ Existed, Which Could Not Possibly Have Been Formed By Numerous, Successive, Slight Modifications, My Theory Would Absolutely Break Down. But I Can Find No Such Case.

Theory Of Evolution

Creation Science

Evolution Of Man

I Find In The Domestic Duck That The Bones Of The Wing Weigh Less And The Bones Of The Leg More, In Proportion To The Whole Skeleton, Than Do The Same Bones In The Wild Duck; And This Change May Be Safely Attributed To The Domestic Duck Flying Much Less, And Walking More, Than Its Wild Parents.

I Am Almost Convinced (quite Contrary To Opinion I Started With) That Species Are Not (it Is Like Confessing A Murder) Immutable.

Origin Of Species

...i Feel Most Deeply That The Whole Subject Is Too Profound For The Human Intellect. A Dog Might As Well Speculate On The Mind Of Newton.— Let Each Man Hope & Believe What He Can.—

It Strikes Me That All Our Knowledge About The Structure Of Our Earth Is Very Much Like What An Old Hen Would Know Of The Hundred-acre Field In A Corner Of Which She Is Scratching.

Animals Manifestly Enjoy Excitement, And Suffer From Annul And May Exhibit Curiosity.

I Can Indeed Hardly See How Anyone Ought To Wish Christianity To Be True For If So The Plain Language Of The Text Seems To Show That The Men Who Do Not Believe, And This Would Include My Father, Brother And Almost All Of My Friends, Will Be Everlastingly Punished. And This Is A Damnable Doctrine.

I Fully Subscribe To The Judgement Of Those Writers Who Maintain That Of All The Differences Between Man And The Lower Animal, The Moral Sense Of Conscience Is By Far The Most Important....it Is The Most Noble Of All The Attributes Of Man.

Mere Chance ... Alone Would Never Account For So Habitual And Large An Amount Of Difference As That Between Varieties Of The Same Species.

Origin Of Species

Man In His Arrogance Thinks Himself A Great Work, Worthy The Interposition Of A Great Deity. More Humble And I Believe True To Consider Him Created From Animals.

When Primeval Man ﬁrst Used ﬂint Stones For Any Purpose, He Would Have Accidentally Splintered Them, And Would Then Have Used The Sharp Fragments. From This Step It Would Be A Small One To Break The ﬂints On Purpose And Not A Very Wide Step To Fashion Them Rudely.

I Have Tried Lately To Read Shakespeare, And Found It So Intolerably Dull That It Nauseated Me.

It Is Absurd To Talk Of One Animal Being Higher Than Another...we Consider Those, Where The Intellectual Faculties Most Developed As The Highest. - A Bee Doubtless Would [use] ... Instincts As A Criteria.

The Age-old And Noble Thought Of 'i Will Lay Down My Life To Save Another,' Is Nothing More Than Cowardice.

The Main Conclusion Arrived At In This Work, Namely That Man Is Descended From Some Lowly-organised Form, Will, I Regret To Think, Be Highly Distasteful To Many Persons. But There Can Hardly Be A Doubt That We Are Descended From Barbarians.

It Is A Truly Wonderful Fact - The Wonder Of Which We Are Apt To Overlook From Familiarity - That All Animals And All Plants Throughout All Time And Space Should Be Related To Each Other In Group Subordinate To Group.

Why Does Man Regret, Even Though He May Endeavour To Banish Any Such Regret, That He Has Followed The One Natural Impulse, Rather Than The Other; And Why Does He Further Feel That He Ought To Regret His Conduct? Man In This Respect Differs Profoundly From The Lower Animals.

We Are Optimists, Until We Are Not.

History Shows That The Human Mind, Fed By Constant Accessions Of Knowledge, Periodically Grows Too Large For Its Theoretical Coverings, And Bursts Them Asunder To Appear In New Habiliments, As The Feeding And Growing Grub, At Intervals, Casts Its Too Narrow Skin And Assumes Another.

Whoever Is Led To Believe That Species Are Mutable Will Do Good Service By Conscientiously Expressing His Conviction; For Only Thus Can The Load Of Prejudice By Which This Subject Is Overwhelmed Be Removed.

Progress Has Been Much More General Than Retrogression

From My Early Youth I Have Had The Strongest Desire To Understand Or Explain Whatever I Observed. ... To Group All Facts Under Some General Laws.

I Always Make Special Notes About Evidence That Contridicts Me: Supportive Evidence I Can Remember Without Trying.

It Is A Cursed Evil To Any Man To Become As Absorbed In Any Subject As I Am In Mine.

It Occurred To Me, In 1837, That Something Might Perhaps Be Made Of This Question (the Origin Of The Species) By Patiently Accumulating And Reflecting On All Sorts Of Facts Which Could Possibly Have Any Bearing On It

One Day, On Tearing Off Some Old Bark, I Saw Two Rare Beetles, And Seized One In Each Hand. Then I Saw A Third And New Kind, Which I Could Not Bear To Lose, So I Popped The One Which I Held In My Right Hand Into My Mouth. Alas! It Ejected Some Intensely Acrid Fluid, Which Burnt My Tongue So That I Was Forced To Spit The Beetle Out, Which Was Lost, As Was The Third One.

I Liked The Thought Of Being A Country Clergyman. Accordingly I Read With Care Pearson On The Creed And A Few Other Books On Divinity; And As I Did Not Then In The Least Doubt The Strict And Literal Truth Of Every Word In The Bible, I Soon Persuaded Myself That Our Creed Must Be Fully Accepted.

The Expression Often Used By Mr. Herbert Spencer Of The Survival Of The Fittest Is More Accurate, And Is Sometimes Equally Convenient.

I Have Called This Principle, By Which Each Slight Variation, If Useful, Is Preserved, By The Term Of Natural Selection.

Theory Of Evolution

Nothing Can Be More Hopeless Than To Attempt To Explain This Similarity Of Pattern In Members Of The Same Class, By Utility Or By The Doctrine Of Final Causes.

That There Is Much Suffering In The World No One Disputes. Which Is More Likely, That Pain And Evil Are The Result Of An All-powerful And Good God, Or The Product Of Uncaring Natural Forces? The Presence Of Much Suffering Agrees Well With The View That All Organic Beings Have Been Developed Through Variation And Natural Selection.

...for The Shield May Be As Important For Victory, As The Sword Or Spear.

Thus Disbelief Crept Over Me At A Very Slow Rate, But At Last Was Complete. The Rate Was So Slow That I Felt No Distress, And Have Never Since Doubted Even For A Single Second That My Conclusion Was Correct.

Now When Naturalists Observe A Close Agreement In Numerous Small Details Of Habits, Tastes And Dispositions Between Two Or More Domestic Races, Or Between Nearly-allied Natural Forms, They Use This Fact As An Argument That All Are Descended From A Common Progenitor Who Was Thus Endowed; And Consequently That All Should Be Classed Under The Same Species. The Same Argument May Be Applied With Much Force To The Races Of Man.

Light Will Be Thrown On The Origin Of Man And His History.

Theory Of Evolution

Freedom Of Thought Is Best Promoted By The Gradual Illumination Of Men’s Minds Which Follows From The Advance Of Science.

In The Distant Future I See Open Fields For Far More Important Researches. Psychology Will Be Based On A New Foundation, That Of The Necessary Acquirement Of Each Mental Power And Capacity By Gradation. Light Will Be Thrown On The Origin Of Man And His History.

My Mind Seems To Have Become A Kind Of Machine For Grinding General Laws Out Of Large Collections Of Facts, But Why This Should Have Caused The Atrophy Of That Part Of The Brain That Alone On Which The Higher Tastes Depend, I Cannot Conceive. A Man With A Mind More Highly Organised Or Better Constituted Than Mine Would Not, I Suppose, Have Thus Suffered, And If I Had To Live My Life Over Again, I Would Have Made A Rule To Read Some Poetry And Listen To Some Music At Least Once Every Week; For Perhaps The Parts Of My Brain Now Atrophied Would Thus Have Been Kept Alive Through Use.

In My Most Extreme Fluctuations I Have Never Been An Atheist In The Sense Of Denying The Existence Of A God ... I Think That Generally (& More And More So As I Grow Older) But Not Always, That An Agnostic Would Be The Most Correct Description Of My State Of Mind.

On Seeing The Marsupials In Australia For The First Time And Comparing Them To Placental Mammals: “an Unbeliever . . . Might Exclaim 'surely Two Distinct Creators Must Have Been At Work'”

It May Be Said That Natural Selection Is Daily And Hourly Scrutinizing, Throughout The World, Every Variation, Even The Slightest; Rejecting That Which Is Bad, Preserving And Adding Up All That Is Good; Silently And Insensibly Working, Wherever And Whenever Opportunity Offers, At The Improvement Of Each Organic Being In Relation To Its Organic And Inorganic Conditions Of Life.

Why, If Species Have Descended From Other Species By Insensibly Fine Gradations, Do We Not Everywhere See Innumerable Transitional Forms.

Origin Of Species

At Some Future Period, Not Very Distant As Measured By Centuries, The Civilised Races Of Man Will Almost Certainly Exterminate And Replace Throughout The World The Savage Races. At The Same Time The Anthropomorphous Apes, As Professor Schaaffhausen Has Remarked, Will No Doubt Be Exterminated. The Break Will Then Be Rendered Wider, For It Will Intervene Between Man In A More Civilised State As We May Hope, Than The Caucasian And Some Ape As Low As A Baboon, Instead Of As At Present Between The Negro Or Australian And The Gorilla.

Great Is The Power Of Steady Misrepresentation; But The History Of Science Shows That Fortunately This Power Does Not Long Endure.

For I Am Well Aware That Scarcely A Single Point Is Discussed In This Volume On Which Facts Cannot Be Adduced, Often Apparently Leading To Conclusions Directly Opposite To Those At Which I Have Arrived. A Fair Result Can Be Obtained Only By Fully Stating And Balancing The Facts And Arguments On Both Sides Of Each Question.

Our Ancestor Was An Animal Which Breathed Water, Had A Swim-bladder, A Great Swimming Tail, An Imperfect Skull & Undoubtedly Was An Hermaphrodite! Here Is A Pleasant Genealogy For Mankind.

The Impossibility Of Conceiving That This Grand And Wondrous Universe, With Our Conscious Selves, Arose Through Chance, Seems To Me The Chief Argument For  the Existence Of God.

About Weak Points [of The Origin] I Agree. The Eye To This Day Gives Me A Cold Shudder, But When I Think Of The Fine Known Gradations, My Reason Tells Me I Ought To Conquer The Cold Shudder.

The Several Difficulties Here Discussed, Namely Our Not Finding In The Successive Formations Infinitely Numerous Transitional Links Between The Many Species Which Now Exist Or Have Existed; The Sudden Manner In Which Whole Groups Of Species Appear In Our European Formations; The Almost Entire Absence, As At Present Known, Of Fossiliferous Formations Beneath The Silurian Strata, Are All Undoubtedly Of The Gravest Nature.

The Chief Distinction In The Intellectual Powers Of The Two Sexes Is Shown By Mans Attaining To A Higher Eminence, In Whatever He Takes Up, Than The Woman. Whether Deep Thought, Reason, Or Imagination Or Merely The Use Of The Senses And Hands.....we May Also Infer.....the Average Mental Power In Man Must Be Above That Of Woman.

Man Himself Cannot Express Love And Humility By External Signs, So Plainly As Does A Dog, When With Drooping Ears, Hanging Lips, Flexuous Body, And Wagging Tail, He Meets His Beloved Master.

And Hail Their Queen, Fair Regent Of The Night.

When The Sexes Differ In Beauty, In The Power Of Singing, Or In Producing What I Have Called Instrumental Music, It Is Almost Invariably The Male Which Excels The Female.

It Is No Valid Objection That Science As Yet Throws No Light On The Far Higher Problem Of The Essence Or Origin Of Life. Who Can Explain Gravity? No One Now Objects To Following Out The Results Consequent On This Unknown Element Of Attraction.

A Fair Result Can Be Obtained Only By Fully Stating And Balancing The Facts And Arguments On Both Sides Of Each Question." Charles Darwin

Although Much Remains Obscure, And Will Long Remain Obscure, ... I Am Convinced That Natural Selection Has Been The Main But Not Exclusive Means Of Modification.

The Willing Horse Is Always Overworked.

One General Law, Leading To The Advancement Of All Organic Beings, Namely, Multiply, Vary, Let The Strongest Live And The Weakest Die.

Origin Of Species

I Have Long Discovered That Geologists Never Read Each Other's Works, And That The Only Object In Writing A Book Is A Proof Of Earnestness.

Even The Humblest Mammal's Strong Sexual, Parental, And Social Instincts Give Rise To 'do Unto Others As Yourself' And 'love Thy Neighbor As Thyself'.

In The Long History Of Humankind (and Animal Kind, Too) Those Who Learned To Collaborate And Improvise Most Effectively Have Prevailed.

I Am Aware That The Conclusions Arrived At In This Work Will Be Denounced By Some As Highly Irreligious; But He Who Denounces Them Is Bound To Show Why It Is More Irreligious To Explain The Origin Of Man As A Distinct Species By Descent From Some Lower From, Through The Laws Of Variation And Natural Selection, Than To Explain The Birth Of The Individual Through The Laws Of Ordinary Reproduction. The Birth Both Of The Species And Of The Individual Are Equally Parts Of That Grand Sequence Of Events, Which Our Minds Refuse To Accept As The Result Of Blind Chance.

Animals, Whom We Have Made Our Slaves, We Do Not Like To Consider Our Equal.

I Could Show Fight On Natural Selection Having Done And Doing More For The Progress Of Civilization Than You Seem Inclined To Admit. Remember What Risk The Nations Of Europe Ran, Not So Many Centuries Ago Of Being Overwhelmed By The Turks, And How Ridiculous Such An Idea Now Is! The More Civilised So-called Caucasian Races Have Beaten The Turkish Hollow In The Struggle For Existence. Looking To The World At No Very Distant Date, What An Endless Number Of The Lower Races Will Have Been Eliminated By The Higher Civilized Races Throughout The World.

Sympathy For The Lowest Animals Is One Of The Noblest Virtues With Which Man Is Endowed.

The More Efficient Causes Of Progress Seem To Consist Of A Good Education During Youth Whilst The Brain Is Impressible, And Of A High Standard Of Excellence, Inculcated By The Ablest And Best Men, Embodied In The Laws, Customs And Traditions Of The Nation, And Enforced By Public Opinion.

It Is Easy To Specify The Individual Objects Of Admiration In These Grand Scenes; But It Is Not Possible To Give An Adequate Idea Of The Higher Feelings Of Wonder, Astonishment, And Devotion, Which Fill And Elevate The Mind.

Mr. J.s. Mill Speaks, In His Celebrated Work, "utilitarianism," Of The Social Feelings As A "powerful Natural Sentiment," And As "the Natural Basis Of Sentiment For Utilitarian Morality," But On The Previous Page He Says, "if, As Is My Own Belief, The Moral Feelings Are Not Innate, But Acquired, They Are Not For That Reason Less Natural." It Is With Hesitation That I Venture To Differ From So Profound A Thinker, But It Can Hardly Be Disputed That The Social Feelings Are Instinctive Or Innate In The Lower Animals; And Why Should They Not Be So In Man?

My Books Have Sold Largely In England, Have Been Translated Into Many Languages, And Passed Through Several Editions In Foreign Countries. I Have Heard It Said That The Success Of A Work Abroad Is The Best Test Of Its Enduring Value. I Doubt Whether This Is At All Trustworthy; But Judged By This Standard My Name Ought To Last For A Few Years.

Wherever The European Has Trod, Death Seems To Pursue The Aboriginal.

It Is Like Confessing To A Murder.

Positive Atheism

The More I Study Nature, The More I Become Impressed With Ever-increasing Force With The Conclusion, That The Contrivances And Beautiful Adaptations Slowly Acquired Through Each Part Occasionally Varying In A Slight Degree But In Many Ways, With The Preservation Or Natural Selection Of Those Variations Which Are Beneficial To The Organism Under The Complex And Ever-varying Conditions Of Life, Transcend In An Incomparable Degree The Contrivances And Adaptations Which The Most Fertile Imagination Of Man Could Suggest With Unlimited Time At His Disposal.

I Am A Firm Believer, That Without Speculation There Is No Good And Original Observation.

I See No Good Reason Why The Views Given This Volume [the Origin Of Species] Should Shock The Religious Feelings Of Any One. It Is Satisfactory, As Showing How Transient Such Impressions Are, To Remember That The Greatest Discovery Ever Made By Man, Namely, The Law Of Attraction Of Gravity, Was Also Attacked By Leibnitz, 'as Subversive Of Natural, And Inferentially Of Revealed, Religion.'

Whenever I Have Found That I Have Blundered, Or That My Work Has Been Imperfected, And When I Have Been Contemptuously Criticised, And Even When I Have Been Overpraised, So That I Have Felt Mortified, It Has Been My Greatest Comfort To Say Hundreds Of Times To Myself That 'i Have Worked As Hard As I Could, And No Man Can Do More Than This.'

I Have Watched How Steadily The General Feeling, As Shown At Elections, Has Been Rising Against Slavery. What A Proud Thing For England If She Is The First European Nation Which Utterly Abolishes It! I Was Told Before Leaving England That After Living In Slave Countries All My Opinions Would Be Altered; The Only Alteration I Am Aware Of Is Forming A Much Higher Estimate Of The Negro Character.

I Never Gave Up Christianity Until I Was Forty Years Of Age.

Looking To Future Generations, There Is No Cause To Fear That The Social Instincts Will Grow Weaker... The Social Instincts, - The Prime Principle Of Man's Moral Constitution - With The Aid Of Active Intellectual Powers And The Effects Of Habit, Naturally Lead To The Golden Rule, "as Ye Would That Men Should Do To You; Do Ye To Them Likewise"; And This Lies At The Foundation Of Morality.

How So Many Absurd Rules Of Conduct, As Well As So Many Absurd Religious Beliefs, Have Originated, We Do Not Know; Nor How It Is That They Have Become, In All Quarters Of The World, So Deeply Impressed On The Minds Of Men; But It Is Worthy Of Remark That A Belief Constantly Inculcated During The Early Years Of Life, While The Brain Is Impressionable, Appears To Acquire Almost The Nature Of An Instinct; And The Very Essence Of An Instinct Is That It Is Followed Independently Of Reason.

After Five Years' Work I Allowed Myself To Speculate On The Subject, And Drew Up Some Short Notes; These I Enlarged In 1844 Into A Sketch Of The Conclusions, Which Then Seemed To Me Probable: From That Period To The Present Day I Have Steadily Pursued The Same Object. I Hope That I May Be Excused For Entering On These Personal Details, As I Give Them To Show That I Have Not Been Hasty In Coming To A Decision.‎

The Traveler May Feel Assured, He Will Meet With No Difficulties Or Dangers, Excepting In Rare Cases, Nearly So Bad As He Beforehand Anticipates. In A Moral Point Of View, The Effect Ought To Be, To Teach Him Good-humored Patience, Freedom From Selfishness, The Habit Of Acting For Himself, And Of Making The Best Of Every Occurrence.

There Is No Fundamental Difference Between Man And The Higher Mammals In Their Mental Faculties...the Difference In Mind Between Man And The Higher Animals, Great As It Is, Certainly Is One Of Degree And Not Of Kind.

Man, Wonderful Man, Must Collapse, Into Nature's Cauldron, He Is No Deity, He Is No Exception.

I Am Actually Weary Of Telling People That I Do Not Pretend To Adduce [direct] Evidence Of One Species Changing Into Another, But I Believe That This View Is In The Main Correct, Because So Many Phenomena Can Thus Be Grouped End Explained.

Traveling Ought Also To Teach Him Distrust; But At The Same Time He Will Discover, How Many Truly Kind-hearted People There Are, With Whom He Never Before Had, Or Ever Again Will Have Any Further Communication, Who Yet Are Ready To Offer Him The Most Disinterested Assistance.

There Are Several Other Sources Of Enjoyment In A Long Voyage, Which Are Of A More Reasonable Nature. The Map Of The World Ceases To Be A Blank; It Becomes A Picture Full Of The Most Varied And Animated Figures.

Attention, If Sudden And Close, Graduates Into Surprise; And This Into Astonishment; And This Into Stupefied Amazement.

From The First Dawn Of Life, All Organic Beings Are Found To Resemble Each Other In Descending Degrees, So That They Can Be Classed In Groups Under Groups. This Classification Is Evidently Not Arbitrary Like The Grouping Of Stars In Constellations.

It Has Sometimes Been Said That The Success Of The Origin Proved "that The Subject Was In The Air," Or "that Men's Minds Were Prepared For It." I Do Not Think That This Is Strictly True, For I Occasionally Sounded Not A Few Naturalists, And Never Happened To Come Across A Single One Who Seemed To Doubt About The Permanence Of Species.

During My Second Year At Edinburgh [1826-27] I Attended Jameson's Lectures On Geology And Zoology, But They Were Incredible Dull. The Sole Effect They Produced On Me Was The Determination Never As Long As I Lived To Read A Book On Geology.

When I View All Beings Not As Special Creations, But As The Lineal Descendants Of Some Few Beings Which Lived Long Before The First Bed Of The Cambrian System Was Deposited, They Seem To Me To Become Ennobled.

When It Was First Said That The Sun Stood Still And World Turned Round, The Common Sense Of Mankind Declared The Doctrine False; But The Old Saying Of Vox Populi, Vox Dei [the Voice Of The People Is The Voice Of God], As Every Philosopher Knows, Cannot Be Trusted In Science.

...conscience Looks Backwards And Judges Past Actions, Inducing That Kind Of Dissatisfaction, Which If Weak We Call Regret, And If Severe Remorse.

... If Variations Useful To Any Organic Being Do Occur, Assuredly Individuals Thus Characterized Will Have The Best Chance Of Being Perserved In The Struggle For Life; And From The Strong Principle Of Inheritance They Will Tend To Produce Offsping Similarly Characterized. This Principle Of Preservation, I Have Called, For The Sake Of Brevity, Natural Selection.

The Tree Of Life Should Perhaps Be Called The Coral Of Life, Base Of Branches Dead; So That Passages Cannot Be Seen-this Again Offers Contradiction To Constant Succession Of Germs In Progress.

I Feel Like An Old Warhorse At The Sound Of A Trumpet When I Read About The Capturing Of Rare Beetles.

With Savages, The Weak In Body Or Mind Are Soon Eliminated. We Civilized Men, On The Other Hand, Do Our Utmost To Check The Process Of Elimination. We Build Asylums For The Imbecile, The Maimed And The Sick. Thus The Weak Members Of Civilized Societies Propagate Their Kind. No One Who Has Attended To The Breeding Of Domestic Animals Will Doubt That This Must Be Highly Injurious To The Race Of Man. Hardly Anyone Is So Ignorant As To Allow His Worst Animals To Breed.

Theory Of Evolution

A Grain In The Balance Will Determine Which Individual Shall Live And Which Shall Die - Which Variety Or Species Shall Increase In Number, And Which Shall Decrease, Or Finally Become Extinct.

We Have Happy Days, Remember Good Dinners.

It Is Often Said That All The Conditions For The First Production Of A Living Organism Are Now Present, Which Could Ever Have Been Present. But If (and Oh! What A Big If!) We Could Conceive In Some Warm Little Pond, With All Sorts Of Ammonia And Phosphoric Salts, Light, Heat, Electricity, &c., Present, That A Proteine Compound Was Chemically Formed Ready To Undergo Stillmore Complex Changes, At The Present Day Such Matter Would Be Instantly Devoured Or Absorbed, Which Would Not Have Been The Case Before Living Creatures Were Formed.

The Normal Food Of Man Is Vegetable.

Such Simple Instincts As Bees Making A Beehive Could Be Sufficient To Overthrow My Whole Theory.

I See No Good Reasons Why The Views Given In This Volume Should Shock The Religious Views Of Anyone.

The Young Blush Much More Freely Than The Old But Not During Infancy, Which Is Remarkable, As We Know That Infants At A Very Early Age Redden From Passion.

Some Few, And I Am One Of Them, Even Wish To God, Though At The Loss Of Millions Of Lives, That The North Would Proclaim A Crusade Against Slavery. In The Long-run, A Million Horrid Deaths Would Be Amply Repaid In The Cause Of Humanity. Great God! How I Should Like To See The Greatest Curse On Earth - Slavery - Abolished!

The Earthquake, However, Must Be To Every One A Most Impressive Event: The Earth, Considered From Our Earliest Childhood As The Type Of Solidity, Has Oscillated Like A Thin Crust Beneath Our Feet; And In Seeing The Laboured Works Of Man In A Moment Overthrown, We Feel The Insignificance Of His Boasted Power.

The Most Powerful Natural Species Are Those That Adapt To Environmental Change Without Losing Their Fundamental Identity Which Gives Them Their Competitive Advantage.

A Man Who Dares To Waste One Hour Of Time Has Not Discovered The Value Of Life.

If The Misery Of The Poor Be Caused Not By The Laws Of Nature, But By Our Institutions, Great Is Our Sin.

I Am Not Apt To Follow Blindly The Lead Of Other Men

We Behold The Face Of Nature Bright With Gladness.

Origin Of Species

We Are Always Slow In Admitting Any Great Change Of Which We Do Not See The Intermediate Steps

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