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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.

-Charles Darwin

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It Is Interesting To

Charles Darwin

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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.

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More From Charles Darwin

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

Of All The Differences Between Man And The Lower Animals, The Moral Sense Or Conscience Is By Far The Most Important. This Sense, As Mackintosh Remarks, "has A Rightful Supremacy Over Every Other Principle Of Human Action"; It Is Summed Up In That Short But Imperious Word "ought," So Full Of High Significance. It Is The Most Noble Of All The Attributes Of Man, Leading Him Without A Moment's Hesitation To Risk His Life For That Of A Fellow-creature; Or After Due Deliberation, Impelled Simply By The Deep Feeling Of Right Or Duty, To Sacrifice It In Some Great Cause.

Till Facts Are Grouped & Called There Can Be No Prediction. The Only Advantage Of Discovering Laws Is To Foretell What Will Happen & To See Bearing Of Scattered Facts.

Often A Cold Shudder Has Run Through Me, And I Have Asked Myself Whether I May Have Not Devoted Myself To A Fantasy.

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

At No Time Am I A Quick Thinker Or Writer: Whatever I Have Done In Science Has Solely Been By Long Pondering, Patience And Industry.

Blushing Is The Most Peculiar And Most Human Of All Expressions.

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 World Will Not Be Inherited By The Strongest, It Will Be Inherited By Those Most Able To Change.

The Presence Of A Body Of Well-instructed Men, Who Have Not To Labor For Their Daily Bread, Is Important To A Degree Which Cannot Be Overestimated; As All High Intellectual Work Is Carried On By Them, And On Such Work Material Progress Of All Kinds Mainly Depends, Not To Mention Other And Higher Advantages.

It Has Been A Bitter Mortification For Me To Digest The Conclusion That The "race Is For The Strong" And That I Shall Probably Do Little More But Be Content To Admire The Strides Others Made In Science.

Nothing Can Be More Improving To A Young Naturalist, Than A Journey In A Distant Country.

It Is So Easy To Hide Our Ignorance Under Such Expressions As The Plan Of Creation Or Unity Of Design, Etc., And To Think That We Give An Explanation When We Only Restate A Fact.

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.

False Facts Are Highly Injurious To The Progress Of Science, For They Often Endure Long; But False Views, If Supported By Some Evidence, Do Little Harm, For Every One Takes A Salutary Pleasure In Proving Their Falseness.

Theory Of Evolution

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.

The Lower Animals, Like Man, Manifestly Feel Pleasure And Pain, Happiness And Misery. Happiness Is Never Better Exhibited Than By Young Animals, Such As Puppies, Kittens, Lambs, &c., When Playing Together, Like Our Own Children.

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.

If Man Had Not Been His Own Classifier, He Would Never Have Thought Of Founding A Separate Order For His Own Reception.

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.

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.

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?

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.

As The Sense Of Smell Is So Intimately Connected With That Of Taste, It Is Not Surprising That An Excessively Bad Odour Should Excite Wretching Or Vomitting In Some Persons.

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.

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

For My Own Part I Would As Soon Be Descended From That Heroic Little Monkey, Who Braved His Dreaded Enemy In Order To Save The Life Of His Keeper; Or From That Old Baboon, Who, Descending From The Mountains, Carried Away In Triumph His Young Comrade From A Crowd Of Astonished Dogs-as From A Savage Who Delights To Torture His Enemies, Offers Up Bloody Sacrifices, Practices Infanticide Without Remorse, Treats His Wives Like Slaves, Knows No Decency, And Is Haunted By The Grossest Superstitions.

I Had Gradually Come, By This Time [1839-01], To See That The Old Testament From Its Manifestly False History Of The World, With The Tower Of Babel, The Rainbow As A Sign, Etc., Etc. And From Its Attributing To God The Feelings Of A Revengeful Tyrant, Was No More To Be Trusted Than The Sacred Books Of The Hindoos, Or The Beliefs Of Any Barbarian.

Man Is More Courageous, Pugnacious, And Energetic Than Woman, And Has A More Inventive Genius. His Brain Is Absolutely Larger, But Whether Relatively To The Larger Size Of His Body, In Comparison With That Of Woman, Has Not, I Believe Been Fully Ascertained. In Woman The Face Is Rounder; The Jaws And The Base Of The Skull Smaller; The Outlines Of Her Body Rounder, In Parts More Prominent; And Her Pelvis Is Broader Than In Man; But This Latter Character May Perhaps Be Considered Rather As A Primary Than A Secondary Sexual Character. She Comes To Maturity At An Earlier Age Than Man.

At Last Gleams Of Light Have Come, And I Am Almost Convinced (quite Contrary To Opinion I Started With) That Species Are Not (it Is Like Confessing A Murder) Immutable. Heaven Forfend Me From Lamarck Nonsense Of A 'tendency To Progression', 'adaptations From The Slow Willing Of Animals', &c! But The Conclusions I Am Led To Are Not Widely Different From His; Though The Means Of Change Are Wholly So. I Think I Have Found Out (here's Presumption!) The Simple Way By Which Species Become Exquisitely Adapted To Various Ends.

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

Light May Be Shed On Man And His Origins.

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

A Mathematician Is A Blind Man In A Dark Room Looking For A Black Cat Which Isn't There.

It Seems To Me Absurd To Doubt That A Man May Be An Ardent Theist And An Evolutionist. ... I Have Never Been An Atheist In The Sense Of Denying The Existence Of A God.

In The Survival Of Favoured Individuals And Races, During The Constantly-recurring Struggle For Existence, We See A Powerful And Ever-acting Form Of Selection.

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.

But Just In Proportion As This Process Of Extermination Has Acted On An Enormous Scale, So Must The Number Of Intermediate Varieties, Which Have Formerly Existed, Be Truly Enormous. Why Then Is Not Every Geological Formation And Every Stratum Full Of Such Intermediate Links? Geology Assuredly Does Not Reveal Any Such Finely Graduated Organic Chain; And This, Perhaps, Is The Most Obvious And Serious Objection Which Can Be Urged Against The Theory. The Explanation Lies, As I Believe, In The Extreme Imperfection Of The Geological Record.

Theory Of Evolution

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.

Sympathy Beyond The Confines Of Man, That Is, Humanity To The Lower Animals, Seems To Be One Of The Latest Moral Acquisitions.

...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.—

... 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.

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

A Republic Cannot Succeed, Till It Contains A Certain Body Of Men Imbued With The Principles Of Justice And Honour.

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.

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.

If I Had My Life To Live Over Again, I Would Have Made A Rule To Read Some Poetry And Listen To Some Music At Least Once Every Week.

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

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.

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

The More One Thinks, The More One Feels The Hopeless Immensity Of Man's Ignorance.

The Main Conclusion Here Arrived At ... Is That Man Is Descended From Some Less Highly Organized Form.

I Think It Can Be Shown That There Is Such An Unerring Power At Work In Natural Selection, Which Selects Exclusively For The Good Of Each Organic Being.

Natural Selection

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

Theory Of Evolution

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

It Is Well-known That Those Who Have Charge Of Young Infants, That It Is Difficult To Feel Sure When Certain Movements About Their Mouths Are Really Expressive; That Is When They Really Smile. Hence I Carefully Watched My Own Infants. One Of Them At The Age Of Forty-five Days, And Being In A Happy Frame Of Mind, Smiled... I Observed The Same Thing On The Following Day: But On The Third Day The Child Was Not Quite Well And There Was No Trace Of A Smile, And This Renders It Probable That The Previous Smiles Were Real.

The Man Who Walks With Henslow.

When The Views Entertained In This Volume On The Origin Of Species, Or When Analogous Views Are Generally Admitted, We Can Dimly Forsee That There Will Be A Considerable Revolution In Natural History.

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

Even People Who Aren’t Geniuses Can Outthink The Rest Of Mankind If They Develop Certain Thinking Habits.

Nature Will Tell You A Direct Lie If She Can.

The Moral Faculties Are Generally And Justly Esteemed As Of Higher Value Than The Intellectual Powers.

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.

Hence, A Traveller Should Be A Botanist, For In All Views Plants Form The Chief Embellishment.

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.

The Willing Horse Is Always Overworked.

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.

Man Is Developed From An Ovule, About 125th Of An Inch In Diameter, Which Differs In No Respect From The Ovules Of Other Animals.

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

And Hail Their Queen, Fair Regent Of The Night.

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

We Have Happy Days, Remember Good Dinners.

Natural Selection Acts Solely By Accumulating Slight Successive Favorable Variations, It Can Produce No Great Or Sudden Modification; It Can Act Only By Very Short Steps.

An American Monkey, After Getting Drunk On Brandy, Would Never Touch It Again, And Thus Is Much Wiser Than Most Men.

But I Own That I Cannot See As Plainly As Others Do, And I Should Wish To Do, Evidence Of Design And Beneficence On All Sides Of Us. There Seems To Me Too Much Misery In The World. I Cannot Persuade Myself That A Beneficent And Omnipotent God Would Have Designedly Created That A Cat Should Play With Mice.

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.

I Was A Young Man With Uninformed Ideas. I Threw Out Queries, Suggestions, Wondering All The Time Over Everything; And To My Astonishment The Ideas Took Like Wildfire. People Made A Religion Of Them.

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.

Every One Must Be Struck With Astonishment, When He First Beholds One Of These Vast Rings Of Coral-rock, Often Many Leagues In Diameter, Here And There Surmounted By A Low Verdant Island With Dazzling White Shores, Bathed On The Outside By The Foaming Breakers Of The Ocean, And On The Inside Surrounding A Calm Expanse Of Water, Which, From Reflection, Is Of A Bright But Pale Green Color.

People Complain Of The Unequal Distribution Of Wealth [but It Is A Far Greater] Injustice That Any One Man Should Have The Power To Write So Many Brilliant Essays... There Is No One Who Writes Like [thomas Huxley].

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

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

Not One Change Of Species Into Another Is On Record ... We Cannot Prove That A Single Species Has Been Changed.

Life Is Nearly Over With Me. I Have Taken No Pains About My Style Of Writing.

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

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

We Can Allow Satellites, Planets, Suns, Universe, Nay Whole Systems Of Universes, To Be Governed By Laws, But The Smallest Insect, We Wish To Be Created At Once By Special Act.

Theory Of Evolution

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

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.

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

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

The Noble Science Of Geology Loses Glory From The Extreme Imperfection Of The Record. The Crust Of The Earth With Its Embedded Remains Must Not Be Looked At As A Well-filled Museum, But As A Poor Collection Made At Hazard And At Rare Intervals.

The Assumed Instinctive Belief In God Has Been Used By Many Persons As An Argument For His Existence. But This Is A Rash Argument, As We Should Thus Be Compelled To Believe In The Existence Of Many Cruel And Malignant Spirits, Only A Little More Powerful Than Man; For The Belief In Them Is Far More General Than In A Beneficent Deity.

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

Origin Of Species

The Western Nations Of Europe, Who Now So Immeasurably Surpass Their Former Savage Progenitors, And Stand At The Summit Of Civilization, Owe Little Or None Of Their Superiority To Direct Inheritance From The Old Greeks, Though They Owe Much To The Written Works Of That Wonderful People.

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.

The Most Important Factor In Survival Is Neither Intelligence Nor Strength But Adaptability.

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

...one Doubts Existence Of Free Will [because] Every Action Determined By Heredity, Constitution, Example Of Others Or Teaching Of Others." "this View Should Teach One Profound Humility, One Deserves No Credit For Anything...nor Ought One To Blame Others.

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

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.

Endless Forms Most Beautiful And Most Wonderful Have Been, And Are Being Evolved

Theory Of Evolution

I Have Rarely Read Anything Which Has Interested Me More, Though I Have Not Read As Yet More Than A Quarter Of The Book Proper. From Quotations Which I Had Seen, I Had A High Notion Of Aristotle's Merits, But I Had Not The Most Remote Notion What A Wonderful Man He Was. Linnaeus And Cuvier Have Been My Two Gods, Though In Very Different Ways, But They Were Mere Schoolboys To Old Aristotle.

With Highly Civilised Nations Continued Progress Depends In A Subordinate Degree On Natural Selection; For Such Nations Do Not Supplant And Exterminate One Another As Do Savage Tribes.

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 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.

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

The Plow Is One Of The Most Ancient And Most Valuable Of Man's Inventions; But Long Before He Existed The Land Was In Fact Regularly Plowed, And Still Continues To Be Thus Plowed By Earthworms. It May Be Doubted Whether There Are Many Other Animals Which Have Played So Important A Part In The History Of The World, As Have These Lowly Organized Creatures.

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.

Changing Environment

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.

Seeing This Gradation And Diversity Of Structure In One Small, Intimately Related Group Of Birds, One Might Really Fancy That From An Original Paucity Of Birds In This Archipelago, One Species Had Been Taken And Modified For Different Ends.

I Cannot Persuade Myself That A Beneficent And Omnipotent God Would Have Designedly Created Parasitic Wasps With The Express Intention Of Their Feeding Within The Living Bodies Of Caterpillars.

A Surprising Number [of Novels] Have Been Read Aloud To Me, And I Like All If Moderately Good, And If They Do Not End Unhappily-against Which A Law Ought To Be Passed.

It Is Like Confessing To A Murder.

Positive Atheism

... Not One Living Species Will Transmit Its Unaltered Likeness To A Distant Futurity.

Origin Of Species

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.‎

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

Theory Of Evolution

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.

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

On The Ordinary View Of Each Species Having Been Independently Created, We Gain No Scientific Explanation.

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 Must Begin With A Good Body Of Facts And Not From A Principle (in Which I Always Suspect Some Fallacy) And Then As Much Deduction As You Please.

We Cannot Fathom The Marvelous Complexity Of An Organic Being; But On The Hypothesis Here Advanced This Complexity Is Much Increased. Each Living Creature Must Be Looked At As A Microcosm--a Little Universe, Formed Of A Host Of Self-propagating Organisms, Inconceivably Minute And As Numerous As The Stars In Heaven.

If Every One Were Cast In The Same Mould, There Would Be No Such Thing As Beauty.

You Ask About My Opinion On Vivisection. I Quite Agree That It Is Justifiable For Real Investigations On Physiology; But Not For Mere Damnable And Detestable Curiosity.

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.

Disbelief Crept Over Me At A Very Slow Rate, But At Last It Was Complete.

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.

Extinction Has Only Separated Groups: It Has By No Means Made Them; For If Every Form Which Has Ever Lived On This Earth Were Suddenly To Reappear, Though It Would Be Quite Impossible To Give Definitions By Which Each Group Could Be Distinguished From Other Groups, As All Would Blend Together By Steps As Fine As Those Between The Finest Existing Varieties, Nevertheless A Natural Classification, Or At Least A Natural Arrangement, Would Be Possible.

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

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.

Although I Am Fully Convinced Of The Truth Of The Views Given In This Volume Under The Form Of An Abstract, I By No Means Expect To Convince Experienced Naturalists Whose Minds Are Stocked With A Multitude Of Facts All Viewed, During A Long Course Of Years, From A Point Of View Directly Opposite To Mine... I Look With Confidence To The Future, To Young And Rising Naturalists, Who Will Be Able To View Both Sides Of The Question With Impartiality.

I Cannot Anyhow Be Contented To View This Wonderful Universe, And Especially The Nature Of Man, And To Conclude That Everything Is The Result Of Brute Force. I Am Inclined To Look At Everything As Resulting From Designed Laws, With The Details, Whether Good Or Bad, Left To The Working Out Of What We Call Chance. Not That This Notion At All Satisfies Me. 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 And Believe What He Can.

In The Struggle For Survival, The Fittest Win Out At The Expense Of Their Rivals Because They Succeed In Adapting Themselves Best To Their Environment.

The Love For All Living Creatures Is The Most Noble Attribute Of Man.

Some Call It Evolution, And Others Call It God.

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.

Progress Has Been Much More General Than Retrogression

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

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

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.

As Many More Individuals Of Each Species Are Born Than Can Possibly Survive; And As, Consequently, There Is A Frequently Recurring Struggle For Existence, It Follows That Any Being, If It Vary However Slightly In Any Manner Profitable To Itself, Under The Complex And Sometimes Varying Conditions Of Life, Will Have A Better Chance Of Surviving, And Thus Be Naturally Selected. From The Strong Principle Of Inheritance, Any Selected Variety Will Tend To Propagate Its New And Modified Form.

It Is Impossible To Concieve Of This Immense And Wonderful Universe As The Result Of Blind Chance Or Necessity.

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.

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

About Thirty Years Ago There Was Much Talk That Geologists Ought Only To Observe And Not Theorise; And I Well Remember Some One Saying That At This Rate A Man Might As Well Go Into A Gravel-pit And Count The Pebbles And Describe The Colours. How Odd It Is That Anyone Should Not See That All Observation Must Be For Or Against Some View If It Is To Be Of Any Service!

Consequently, If My Theory Be True, It Is Indisputable That Before The Lowest Silurian Stratum Was Deposited, Long Periods Elapsed, As Long As, Or Probably Far Longer Than, The Whole Interval From The Silurian Age To The Present Day; And That During These Vast, Yet Quite Unknown, Periods Of Time, The World Swarmed With Living Creatures. To The Question Why We Do Not Find Records Of These Vast Primordial Periods, I Can Give No Satisfactory Answer.

I Am Sorry To Have To Inform You That I Do Not Believe In The Bible As A Divine Revelation, & Therefore Not In Jesus Christ As The Son Of God.

A Man Who Has No Assured And Ever Present Belief In The Existence Of A Personal God Or Of A Future Existence With Retribution And Reward, Can Have For His Rule Of Life, As Far As I Can See, Only To Follow Those Impulses And Instincts Which Are The Strongest Or Which Seem To Him The Best Ones

Hereafter We Shall Be Compelled To Acknowledge That The Only Distinction Between Species And Well-marked Varieties Is, That The Latter Are Known, Or Believed To Be Connected At The Present Day By Intermediate Gradations Whereas Species Were Formerly Thus Connected.

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.

I Am Not Very Sceptical, — A Frame Of Mind Which I Believe To Be Injurious To The Progress Of Science. A Good Deal Of Scepticism In A Scientific Man Is Advisable To Avoid Much Loss Of Time, But I Have Met With Not A Few Men, Who, I Feel Sure, Have Often Thus Been Deterred From Experiment Or Observations, Which Would Have Proved Directly Or Indirectly Serviceable .

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

What Can Be More Curious Than That The Hand Of A Man, Formed For Grasping, That Of A Mole For Digging, The Leg Of The Horse, The Paddle Of The Porpoise, And The Wing Of The Bat, Should All Be Constructed On The Same Pattern?

I Cannot See ... Evidence Of Design And Beneficence ... There Seems To Me Too Much Misery In The World.

[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].

It's An Awful Stretcher To Believe That A Peacock's Tail Was Thus Formed But ... Most People Just Don't Get It - I Must Be A Very Bad Explainer

I Would Give Absolutely Nothing For The Theory Of Natural Selection, If It Requires Miraculous Additions At Any One Stage Of Descent.

It Is Not The Biggest, The Brightest Or The Best That Will Survive, But Those Who Adapt The Quickest.

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.

Another Source Of Conviction In The Existence Of God, Connected With The Reason And Not With The Feelings, Impresses Me As Having Much More Weight. This Follows From The Extreme Difficulty Or Rather Impossibility Of Conceiving This Immense And Wonderful Universe, Including Man With His Capacity Of Looking Far Backwards And Far Into Futurity, As The Result Of Blind Chance Or Necessity. When Thus Reflecting I Feel Compelled To Look To A First Cause Having An Intelligent Mind In Some Degree Analogous To That Of Man; And I Deserve To Be Called A Theist.

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.

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.

Linnaeus And Cuvier Have Been My Two Gods, Though In Very Different Ways, But They Were Mere Schoolboys To Old Aristotle.

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.

We Behold The Face Of Nature Bright With Gladness.

Origin Of Species

In Regard To The Amount Of Difference Between The Races, We Must Make Some Allowance For Our Nice Powers Of Discrimination Gained By A Long Habit Of Observing Ourselves.

Ultimately A Highly Complex Sentiment, Having Its First Origin In The Social Instincts, Largely Guided By The Approbation Of Our Fellow-men, Ruled By Reason, Self-interest, And In Later Times By Deep Religious Feelings, Confirmed By Instruction And Habit, All Combined, Constitute Our Moral Sense Or Conscience.

A Celebrated Author And Divine Has Written To Me That He Has Gradually Learned To See That It Is Just As Noble A Conception Of The Deity To Believe That He Created A Few Original Forms Capable Of Self-development Into Other And Needful Forms, As To Believe That He Required A Fresh Act Of Creation To Supply The Voids Caused By The Action Of His Laws.

I Long To Set Foot Where No Man Has Trod Before.

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.

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.

I Am Dying By Inches, From Not Having Any Body To Talk To About Insects.

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

The Loss Of These Tastes [for Poetry And Music] Is A Loss Of Happiness, And May Possibly Be Injurious To The Intellect, And More Probably To The Moral Character, By Enfeebling The Emotional Part Of Our Nature.

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

Free Will Is To Mind What Chance Is To Matter.

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.

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.

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.

The Voyage Of The Beagle Has Been By Far The Most Important Event In My Life And Has Determined My Whole Career; Yet It Depended On So Small A Circumstance As My Uncle Offering To Drive Me 30 Miles To Shrewsbury, Which Few Uncles Would Have Done, And On Such A Trifle As The Shape Of My Nose.

[t]he Young And The Old Of Widely Different Races, Both With Man And Animals, Express The Same State Of Mind By The Same Movements.

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.

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

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

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'”

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.

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.

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.

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

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

The Very Essence Of Instinct Is That It's Followed Independently Of Reason.

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

Ignorance More Frequently Begets Confidence Than Does Knowledge.

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.

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

On Your Life, Underestimating The Proclivities Of Finches Is Likely To Lead To Great Internal Hemorrhaging.

...i Believe There Exists, & I Feel Within Me, An Instinct For The Truth, Or Knowledge Or Discovery, Of Something Of The Same Nature As The Instinct Of Virtue, & That Our Having Such An Instinct Is Reason Enough For Scientific Researches Without Any Practical Results Ever Ensuing From Them.

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

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