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For All I Know We May Be Visited By A Different Extraterrestrial Civilization Every Second Tuesday, But There's No Support For This Appealing Idea. The Extraordinary Claims Are Not Supported By Extraordinary Evidence.

-Carl Sagan

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For All I Know

Carl Sagan

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For All I Know We May Be Visited By A Different Extraterrestrial Civilization Every Second Tuesday, But There's No Support For This Appealing Idea. The Extraordinary Claims Are Not Supported By Extraordinary Evidence.

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Human Beings Grew Up In Forests; We Have A Natural Affinity For Them. How Lovely A Tree Is, Straining Toward The Sky.

Some 5 Billion Years From Now, There Will Be A Last Perfect Day On Earth... Then The Sun Will Begin To Die, Life Will Be Extinguished, The Oceans Will Boil And Evaporate Away.

Is Mankind Alone In The Universe? Or Are There Somewhere Other Intelligent Beings Looking Up Into Their Night Sky From Very Different Worlds And Asking The Same Kind Of Question?

I Think The Discomfort That Some People Feel In Going To The Monkey Cages At The Zoo Is A Warning Sign.

An Atheist Is Someone Who Is Certain That God Does Not Exist, Someone Who Has Compelling Evidence Against The Existence Of God. I Know Of No Such Compelling Evidence. Because God Can Be Relegated To Remote Times And Places And To Ultimate Causes, We Would Have To Know A Great Deal More About The Universe Than We Do Now To Be Sure That No Such God Exists. To Be Certain Of The Existence Of God And To Be Certain Of The Nonexistence Of God Seem To Me To Be The Confident Extremes In A Subject So Riddled With Doubt And Uncertainty As To Inspire Very Little Confidence Indeed.

An Organism At War With Itself Is Doomed.

I Worry That, Especially As The Millennium Edges Nearer, Pseudo-science And Superstition Will Seem Year By Year More Tempting, The Siren Song Of Unreason More Sonorous And Attractive.

Those Who Seek Power At Any Price Detect A Societal Weakness, A Fear That They Can Ride Into Office.

Every Cell Is A Triumph Of Natural Selection, And We’re Made Of Trillions Of Cells. Within Us, Is A Little Universe.

You're Capable Of Such Beautiful Dreams And Such Horrible Nightmares.

(when Asked Merely If They Accept Evolution, 45 Percent Of Americans Say Yes. The Figure Is 70 Percent In China.) When The Movie Jurassic Park Was Shown In Israel, It Was Condemned By Some Orthodox Rabbis Because It Accepted Evolution And Because It Taught That Dinosaurs Lived A Hundred Million Years Ago-when, As Is Plainly Stated At Every Rosh Hashonhan And Every Jewish Wedding Ceremony, The Universe Is Less Than 6,000 Years Old.

These Days There Seems To Be Nowhere Left To Explore, At Least On The Land Area Of The Earth. Victims Of Their Very Success, The Explorers Now Pretty Much Stay Home.

We Are The Custodians Of Life's Meaning.

The Bill Of Rights Decoupled Religion From The State, In Part Because So Many Religions Were Steeped In An Absolutist Frame Of Mind - Each Convinced That It Alone Had A Monopoly On The Truth And Therefore Eager For The State To Impose This Truth On Others.

The Cosmic Calendar Compresses The Local History Of The Universe Into A Single Year. If The Universe Began On January 1st It Was Not Until May That The Milky Way Formed. Other Planetary Systems May Have Appeared In June, July And August, But Our Sun And Earth Not Until Mid-september. Life Arose Soon After. We Humans Appear On The Cosmic Calendar So Recently That Our Recorded History Occupies Only The Last Few Seconds Of The Last Minute Of December 31st.

Even Through Your Hardest Days, Remember We Are All Made Of Stardust.

Preserve And Cherish The Pale Blue Dot, The Only Home We've Ever Known.

Man Is A Transitional Animal. He Is Not The Climax Of Creation

Our Ancestors Worshipped The Sun, And They Were Not That Foolish. It Makes Sense To Revere The Sun And The Stars, For We Are Their Children.

For All Our Conceits About Being The Center Of The Universe, We Live In A Routine Planet Of A Humdrum Star Stuck Away In An Obscure Corner ... On An Unexceptional Galaxy Which Is One Of About 100 Billion Galaxies. ... That Is The Fundamental Fact Of The Universe We Inhabit, And It Is Very Good For Us To Understand That.

War Is Murder Writ Large.

That We Can Now Think Of No Mechanism For Astrology Is Relevant But Unconvincing. No Mechanism Was Known, For Example, For Continental Drift When It Was Proposed By Wegener. Nevertheless, We See That Wegener Was Right, And Those Who Objected On The Grounds Of Unavailable Mechanism Were Wrong.

We Can Always Take But Never Give.

When We Look Up At Night And View The Stars, Everything We See Is Shinning Because Of Distant Nuclear Fusion.

All Of The Books In The World Contain No More Information Than Is Broadcast As Video In A Single Large American City In A Single Year. Not All Bits Have Equal Value.

Is It Fair To Be Suspicious Of An Entire Profession Because Of A Few Bad Apples? There Are At Least Two Important Differences, It Seems To Me. First, No One Doubts That Science Actually Works, Whatever Mistaken And Fraudulent Claim May From Time To Time Be Offered. But Whether There Are Any Miraculous Cures From Faith-healing, Beyond The Body's Own Ability To Cure Itself, Is Very Much At Issue. Secondly, The Expose' Of Fraud And Error In Science Is Made Almost Exclusively By Science. But The Exposure Of Fraud And Error In Faith-healing Is Almost Never Done By Other Faith-healers.

The Near Side Of A Galaxy Is Tens Of Thousands Of Light-years Closer To Us Than The Far Side; Thus We See The Front As It Was Tens Of Thousands Of Years Before The Back. But Typical Events In Galactic Dynamics Occupy Tens Of Millions Of Years, So The Error In Thinking Of An Image Of A Galaxy As Frozen In One Moment Of Time Is Small.

There Is A Reward Structure In Science That Is Very Interesting: Our Highest Honors Go To Those Who Disprove The Findings Of The Most Revered Among Us. So Einstein Is Revered Not Just Because He Made So Many Fundamental Contributions To Science, But Because He Found An Imperfection In The Fundamental Contribution Of Isaac Newton.

Writing Is Perhaps The Greatest Of Human Inventions, Binding Together People Who Never Knew Each Other, Citizens Of Distant Epochs. Books Break The Shackles Of Time. A Book Is Proof That Humans Are Capable Of Magic.

Wisdom Lies In Understanding Our Limitations.

We Are The Universe Experiencing Itself.

Those Afraid Of The Universe As It Really Is, Those Who Pretend To Nonexistent Knowledge And Envision A Cosmos Centered On Human Beings Will Prefer The Fleeting Comforts Of Superstition. They Avoid Rather Than Confront The World. But Those With The Courage To Explore The Weave And Structure Of The Cosmos, Even Where It Differs Profoundly From Their Wishes And Prejudices, Will Penetrate Its Deepest Mysteries.

By Exploring Other Worlds We Safeguard This One. By Itself, I Think This Fact More Than Justifies The Money Our Species Has Spent In Sending Ships To Other Worlds. It Is Our Fate To Live During One Of The Most Perilous And, At The Same Time, One Of The Most Hopeful Chapters In Human History.

Where Did God Come From? If We Decide This Is An Unanswerable Question Why Not Save A Step And Conclude That The Origin Of The Universe Is An Unanswerable Question.

You Mustn't Think Of The Universe As A Wilderness. It Hasn't Been That For Billions Of Years," He Said. "think Of It More As... ..cultivated.

One Of The Reasons For Its Success Is That Science Has A Built-in, Error-correcting Machinery At Its Very Heart. Some May Consider This An Overbroad Characterization, But To Me Every Time We Exercise Self-criticism, Every Time We Test Our Ideas Against The Outside World, We Are Doing Science. When We Are Self-indulgent And Uncritical, When We Confuse Hopes And Facts, We Slide Into Pseudoscience And Superstition.

In The Deepest Sense The Search For Extraterrestrial Intelligence Is A Search For Ourselves.

Extraterrestrial

In The Vastness Of Space And The Immensity Of Time, It Is My Joy To Share A Planet And An Epoch With Annie.

A Book Is Made From A Tree. It Is An Assemblage Of Flat, Flexible Parts (still Called "leaves") Imprinted With Dark Pigmented Squiggles. One Glance At It And You Hear The Voice Of Another Person, Perhaps Someone Dead For Thousands Of Years. Across The Millennia, The Author Is Speaking, Clearly And Silently, Inside Your Head, Directly To You. Writing Is Perhaps The Greatest Of Human Inventions, Binding Together People, Citizens Of Distant Epochs, Who Never Knew One Another. Books Break The Shackles Of Time ― Proof That Humans Can Work Magic.

When You Realize That No One Really Knows What They Are Doing And That Everyone Is Doing The Best They Can According To Their Own Level Of Consciousness, Life Gets A Lot Easier. Skeptical Scrutiny Is The Means, In Both Science And Religion, By Which Deep Thoughts Can Be Winnowed From Deep Nonsense.

We Are A Way For The Cosmos To Know Itself.

The Understanding Of The Intent Of The Artist Which I Can Achieve When High Sometimes Carries Over To When I’m Down. This Is One Of Many Human Frontiers Which Cannabis Has Helped Me Traverse.

We Are The Children Equally Of The Sky And The Earth.

When Kepler Found His Long-cherished Belief Did Not Agree With The Most Precise Observation, He Accepted The Uncomfortable Fact. He Preferred The Hard Truth To His Dearest Illusions, That Is The Heart Of Science.

Better By Far To Embrace The Hard Truth Than A Reassuring Fable. If We Crave Some Cosmic Purpose, Then Let Us Find Ourselves A Worthy Goal.

Religions Contradict One Another-on Small Matters, Such As Whether We Should Put On A Hat Or Take One Off On Entering A House Of Worship, Or Whether We Should Eat Beef And Eschew Pork Or The Other Way Around, All The Way To The Most Central Issues, Such As Whether There Are No Gods, One God, Or Many Gods.

How Smart Does A Chimpanzee Have To Be Before Killing Him Constitutes Murder?

We Have Also Arranged Things So That Almost No One Understands Science And Technology. This Is A Prescription For Disaster. We Might Get Away With It For A While, But Sooner Or Later This Combustible Mixture Of Ignorance And Power Is Going To Blow Up In Our Faces.

I Would Suggest That Science Is, At Least In My Part, Informed Worship.

A Still More Glorious Dawn Awaits / Not A Sunrise, But A Galaxy-rise / A Morning Filled With 400 Billion Suns / The Rising Of The Milky Way

The Well-meaning Contention That All Ideas Have Equal Merit Seems To Me Little Different From The Disastrous Contention That No Ideas Have Any Merit.

But The Fact That Some Geniuses Were Laughed At Does Not Imply That All Who Are Laughed At Are Geniuses. They Laughed At Columbus, They Laughed At Fulton, They Laughed At The Wright Brothers. But They Also Laughed At Bozo The Clown.

Perhaps, In Retrospect, There Would Be Little Motivation Even For Malevolent Extraterrestrials To Attack The Earth; Perhaps, After A Preliminary Survey, They Might Decide It Is More Expedient Just To Be Patient For A Little While And Wait For Us To Self-destruct.

In Science It Often Happens That Scientists Say, "you Know That's A Really Good Argument; My Position Is Mistaken..."

Theoretical Physics

The Evidence, So Far At Least And Laws Of Nature Aside, Does Not Require A Designer. Maybe There Is One Hiding, Maddeningly Unwilling To Be Revealed.

I'm Only A Four-dimensional Creature. Haven't Got A Clue How To Visualise Infinity. Even Einstein Hadn't. I Know Because I Asked Him

Any Faith That Admires Truth, That Strives To Know God, Must Be Brave Enough To Accommodate The Universe.

I’m Struck Again By The Irony That Spaceflight-conceived In The Cauldron Of Nationalist Rivalries And Hatreds-brings With It A Stunning Transnational Vision. You Spend Even A Little Time Contemplating The Earth From Orbit And The Most Deeply Engrained Nationalisms Begin To Erode. They Seem The Squabbles Of Mites On A Plum.

The Open Road Still Softly Calls.

One Trend That Bothers Me Is The Glorification Of Stupidity, That The Media Is Reassuring People It's Alright Not To Know Anything. That To Me Is Far More Dangerous Than A Little Pornography On The Internet.

Science Is A Way Of Thinking Much More Than It Is A Body Of Knowledge. Its Goal Is To Find Out How The World Works, To Seek What Regularities There May Be, To Penetrate To The Connections Of Things-from Subatomic Particles, Which May Be The Constituents Of All Matter, To Living Organisms, The Human Social Community, And Thence To The Cosmos As A Whole.

Who Are We, If Not Measured By Our Impact On Others?

Nevertheless, (jefferson) Believed That The Habit Of Skepticism Is An Essential Prerequisite For Responsible Citizenship. He Argued That The Cost Of Education Is Trivial Compared To The Cost Of Ignorance, Of Leaving Government To The Wolves. He Taught That The Country Is Safe Only When The People Rule.

Modern Science Has Been A Voyage Into The Unknown, With A Lesson In Humility Waiting At Every Stop. Many Passengers Would Rather Have Stayed Home.

There Are Lots Of Ways To Communicate What We Know, But Few Ways To Communicate What We Feel. Music Is One Way To Communicate Emotions.

In Italy, The Inquisition Was Condemning People To Death Until The End Of The Eighteenth Century, And Inquisitional Torture Was Not Abolished In The Catholic Church Until 1816. The Last Bastion Of Support For The Reality Of Witchcraft And The Necessity Of Punishment Has Been The Christian Churches.

Widespread Intellectual And Moral Docility May Be Convenient For Leaders In The Short Term, But It Is Suicidal For Nations In The Long Term. One Of The Criteria For National Leadership Should Therefore Be A Talent For Understanding, Encouraging, And Making Constructive Use Of Vigorous Criticism.

We All Have A Thirst For Wonder. It's A Deeply Human Quality. Science And Religion Are Both Bound Up With It. What I'm Saying Is, You Don't Have To Make Stories Up, You Don't Have To Exaggerate. There's Wonder And Awe Enough In The Real World. Nature's A Lot Better At Inventing Wonders Than We Are.

The Library Connects Us With The Insight And Knowledge, Painfully Extracted From Nature, Of The Greatest Minds That Ever Were, With The Best Teachers, Drawn From The Entire Planet And From All Our History, To Instruct Us Without Tiring, And To Inspire Us To Make Our Own Contribution To The Collective Knowledge Of The Human Species.

But I Could Be Wrong.

The Surface Of The Earth Is The Shore Of The Cosmic Ocean.

If There Is Life, Then I Believe We Should Do Nothing To Disturb That Life. Mars Then, Belongs To The Martians, Even If They Are Microbes.

My Parents Were Not Scientists. They Knew Almost Nothing About Science. But In Introducing Me Simultaneously To Skepticism And To Wonder, They Taught Me The Two Uneasily Cohabiting Modes Of Thought That Are Central To The Scientific Method.

Science Is Merely An Extremely Powerful Method Of Winnowing What's True From What Feels Good.

Since World War Ii, Japan Has Spawned Enormous Numbers Of New Religions Featuring The Supernatural.... In Thailand, Diseases Are Treated With Pills Manufactured From Pulverized Sacred Scripture. Witches Are Today Being Burned In South Africa.... The Worldwide Tm [transcendental Meditation] Organization Has An Estimated Valuation Of $3 Billion. For A Fee, They Promise To Make You Invisible, To Enable You To Fly.

I Set Before You Two Ways: You Can Use Your Technology To Destroy Yourselves Or To Carry You To The Planets And The Stars. It's Up To You.

The Suppression Of Uncomfortable Ideas May Be Common In Religion Or In Politics, But It Is Not The Path To Knowledge; It Has No In The Endeavor Of Science. We Do Not Know In Advance Who Will Discover Fundamental Insights.

There Is In This Universe Much Of What Seems To Be Design.

The Reappearance Of The Crescent Moon After The New Moon; The Return Of The Sun After A Total Eclipse, The Rising Of The Sun In The Morning After Its Troublesome Absence At Night Were Noted By People Around The World; These Phenomena Spoke To Our Ancestors Of The Possibility Of Surviving Death. Up There In The Skies Was Also A Metaphor Of Immortality.

We Are One Species. We Are Starstuff.

Atoms Are Mainly Empty Space. Matter Is Composed Chiefly Of Nothing.

If We Say That God Has Always Been, Why Not Save A Step And Conclude That The Universe Has Always Been?

If You Look At Earth From Space You See A Dot, That's Here. That's Home. That's Us. It Underscores The Responsibility To Deal More Kindly And Compassionately With One Another And To Preserve And Cherish That Pale Blue Dot, The Only Home We've Ever Known.

It's A Lazy Saturday Afternoon, There's A Couple Lying Naked In Bed Reading Encyclopediea Brittannica To Each Other, And Arguing About Whether The Andromeda Galaxy Is More 'numinous' Than The Ressurection. Do They Know How To Have A Good Time, Or Don't They?

Our Children Long For Realistic Maps Of The Future That They Can Be Proud Of. Where Are The Cartographers Of Human Purpose?

The Values Of Science And The Values Of Democracy Are Concordant, In Many Cases Indistinguishable. Science And Democracy Began - In Their Civilized Incarnations - In The Same Time And Place, Greece In The Seventh And Sixth Centuries B.c. . . . Science Thrives On, Indeed Requires, The Free Exchange Of Ideas; Its Values Are Antithetical To Secrecy. Science Holds To No Special Vantage Points Or Privileged Positions. Both Science And Democracy Encourage Unconventional Opinions And Vigorous Debate. Both Demand Adequate Reason, Coherent Argument, Rigorous Standards Of Evidence And Honesty.

We Seem, These Days, Much More Willing To Recognize The Perils Before Us Than We Were Even A Decade Ago. The Newly Recognized Dangers Threaten All Of Us, Equally. No One Can Say How It Will Turn Out Down Here. But This Is Also, We May Note, The First Time That A Species Has Become Able To Journey To The Planets And The Stars. Sailors On A Becalmed Sea, We Sense A Stirring Of The Breeze.

Exploration Is In Our Nature. We Began As Wanderers, And We Are Wanderers Still. We Have Lingered Long Enough On The Shores Of The Cosmic Ocean. We Are Ready At Last To Set Sail For The Stars.

Since, In The Long Run, Every Planetary Society Will Be Endangered By Impacts From Space, Every Surviving Civilization Is Obliged To Become Spacefaring — Not Because Of Exploratory Or Romantic Zeal, But For The Most Practical Reason Imaginable: Staying Alive.

An Extraterrestrial Being, Newly Arrived On Earth - Scrutinizing What We Mainly Present To Our Children In Television, Radio, Movies, Newspapers, Magazines, The Comics, And Many Books - Might Easily Conclude That We Are Intent On Teaching Them Murder, Rape, Cruelty, Superstition, Credulity, And Consumerism. We Keep At It, And Through Constant Repetition Many Of Them Finally Get It.

The Hindu Religion Is The Only One Of The World’s Great Faiths Dedicated To The Idea That The Cosmos Itself Undergoes An Immense, Indeed An Infinite, Number Of Deaths And Rebirths. It Is The Only Religion In Which The Time Scales Correspond, No Doubt By Accident, To Those Of Modern Scientific Cosmology. Its Cycles Run From Our Ordinary Day And Night To A Day And Night Of Brahma, 8.64 Billion Years Long, Longer Than The Age Of The Earth Or The Sun And About Half The Time Since The Big Bang.

We Are A Way Of The Universe Knowing Itself.

Better The Hard Truth, I Say, Than The Comforting Fantasy. And In The Final Tolling It Often Turns Out That The Facts Are More Comforting Than The Fantasy.

When You Make The Finding Yourself - Even If You're The Last Person On Earth To See The Light - You'll Never Forget It.

There Are Many Hypotheses In Science Which Are Wrong. That’s Perfectly All Right: It’s The Aperture To Finding Out What’s Right. Science Is A Self-correcting Process.

In Many Cultures It Is Customary To Answer That God Created The Universe Out Of Nothing. But This Is Mere Temporizing. If We Wish Courageously To Pursue The Question, We Must, Of Course Ask Next Where God Comes From? And If We Decide This To Be Unanswerable, Why Not Save A Step And Conclude That The Universe Has Always Existed?

We Are The Product Of 4.5 Billion Years Of Fortuitous, Slow Biological Evolution. There Is No Reason To Think That The Evolutionary Process Has Stopped. Man Is A Transitional Animal. He Is Not The Climax Of Creation.

That Kind Of Skeptical, Questioning, "don't Accept What Authority Tells You" Attitude Of Science - Is Also Nearly Identical To The Attitude Of Mind Necessary For A Functioning Democracy. Science And Democracy Have Very Consonant Values And Approaches, And I Don't Think You Can Have One Without The Other.

Democracies Have

Not All Bits Have Equal Value.

Science And Technology

We've Begun At Last To Wonder About Our Origins, Star Stuff Contemplating The Stars, Organized Collections Of Ten Billion Billion Billion Atoms Contemplating The Evolution Of Matter, Tracing That Long Path By Which It Arrived At Consciousness Here On The Planet Earth And Perhaps Throughout The Cosmos. Our Obligation To Survive And Flourish Is Owed Not Just To Ourselves But Also To That Cosmos, Ancient And Vast, From Which We Spring.

Religions Are Often State-protected Nurseries Of Pseudoscience, Although There's No Reason Why Religions Have To Play That Role. In A Way, It's An Artefact From Times Long Gone.

A Millennium Before Europeans Were Willing To Divest Themselves Of The Biblical Idea That The World Was A Few Thousand Years Old, The Mayans Were Thinking Of Millions And The Hindus Billions.

You Can Get Into A Habit Of Thought In Which You Enjoy Making Fun Of All Those Other People Who Don't See Things As Clearly As You Do. We Have To Guard Carefully Against It.

And After We Returned To The Savannahs And Abandoned The Trees, Did We Long For Those Great Graceful Leaps And Ecstatic Moments Of Weightlessness In The Shafts Of Sunlight Of The Forest Roof?

My Deeply Held Belief Is That If A God Of Anything Like The Traditional Sort Exists, Our Curiosity And Intelligence Are Provided By Such A God. We Would Be Unappreciative Of Those Gifts (as Well As Unable To Take Such A Course Of Action) If We Suppressed Our Passion To Explore The Universe And Ourselves. On The Other Hand, If Such A Traditional God Does Not Exist, Our Curiosity And Our Intelligence Are The Essential Tools For Managing Our Survival. In Either Case, The Enterprise Of Knowledge Is Consistent With Both Science And Religion, And Is Essential For The Welfare Of The Human Species.

An Atheist Has To Know A Lot More Than I Know. An Atheist Is Someone Who Knows There Is No God. By Some Definitions Atheism Is Very Stupid.

There Is No God

The Hindu Religion Is The Only Of The World's Great Faiths Dedicated To The Idea That The Cosmos Itself Undergoes An Immense, Indeed An Infinite, Number Of Deaths And Rebirths.

When Permitted To Listen To Alternative Opinions And Engage In Substantive Debate, People Have Been Known To Change Their Minds. It Can Happen.

Books Break The Shackles Of Time, Proof That Humans Can Work Magic.

Science Is A Way Of Thinking That Helps You Not To Fool Yourself.

Probably A Dozen Times Since Their Death I've Heard My Mother Or Father, In An Ordinary Conversational Tone Of Voice, Call My Name. They Had Called My Name Often During My Life With Them ... It Doesn't Seem Strange To Me.

I Would Love To Believe That When I Die I Will Live Again, That Some Thinking, Feeling, Remembering Part Of Me Will Continue. But As Much As I Want To Believe That, And Despite The Ancient And Worldwide Cultural Traditions That Assert An Afterlife, I Know Of Nothing To Suggest That It Is More Than Wishful Thinking.

The Suppression Of Uncomfortable Ideas May Be Common In Religion Or In Politics, But It Is Not The Path To Knowledge, And There's No Place For It In The Endeavor Of Science. We Do Not Know Beforehand Where Fundamental Insights Will Arise From About Our Mysterious And Lovely Solar System. The History Of Our Study Of Our Solar System Shows Us Clearly That Accepted And Conventional Ideas Are Often Wrong, And That Fundamental Insights Can Arise From The Most Unexpected Sources.

One Of The Great Commandments Of Science Is, 'mistrust Arguments From Authority'. (scientists, Being Primates, And Thus Given To Dominance Hierarchies, Of Course Do Not Always Follow This Commandment.)

Every Star May Be A Sun To Someone.

Football Is A Thinly Disguised Re-enactment Of Hunting; We Played It Before We Were Human.

The Wind Whips Through The Canyons Of The American Southwest, And There Is No One To Hear It But Us - A Reminder Of The 40,000 Generations Of Thinking Men And Women Who Preceded Us, About Whom We Know Almost Nothing, Upon Whom Our Civilization Is Based.

The Earth Is A Very Small Stage In A Vast Cosmic Arena.

I Have A Foreboding Of An America In My Children's Or Grandchildren's Time - [...] When Awesome Technological Powers Are In The Hands Of A Very Few, And No One Representing The Public Interest Can Even Grasp The Issues; When The People Have Lost The Ability To Set Their Own Agendas Or Knowledgeably Question Those In Authority; When, Clutching Our Crystals And Nervously Consulting Our Horoscopes, Our Critical Faculties In Decline, Unable To Distinguish Between What Feels Good And What’s True, We Slide, Almost Without Noticing, Back Into Superstition And Darkness.

If We Offer Too Much Silent Assent About Mysticism And Superstition - Even When It Seems To Be Doing A Little Good - We Abet A General Climate In Which Scepticism Is Considered Impolite, Science Tiresome, And Rigorous Thinking Somehow Stuffy And Inappropriate.

Before We Invented Civilization Our Ancestors Lived Mainly In The Open Out Under The Sky. Before We Devised Artificial Lights And Atmospheric Pollution And Modern Forms Of Nocturnal Entertainment We Watched The Stars. There Were Practical Calendar Reasons Of Course But There Was More To It Than That. Even Today The Most Jaded City Dweller Can Be Unexpectedly Moved Upon Encountering A Clear Night Sky Studded With Thousands Of Twinkling Stars. When It Happens To Me After All These Years It Still Takes My Breath Away.

A Multitude Of Aspects Of The Natural World That Were Considered Miraculous Only A Few Generations Ago Are Now Thoroughly Understood In Terms Of Physics And Chemistry.

.. Think Of The Rivers Of Blood Spilled By All Those Generals And Emperors So That In Glory And In Triumph They Could Become The 'momentary' Masters Of A 'fraction' Of A 'dot'

If You Wish To Make An Apple Pie From Scratch, You Must First Invent The Universe.

The Dumbing Down Of America Is Evident In The Slow Decay Of Substantive Content, A Kind Of Celebration Of Ignorance.

Science ... Looks Skeptically At All Claims To Knowledge, Old And New. It Teaches Not Blind Obedience To Those In Authority But To Vigorous Debate, And In Many Respects That's The Secret Of Its Success.

Science Is Only A Latin Word For Knowledge

It Is The Responsibility Of Scientists Never To Suppress Knowledge, No Matter How Awkward That Knowledge Is, No Matter How It May Bother Those In Power; We Are Not Smart Enough To Decide Which Pieces Of Knowledge Are Permissible, And Which Are Not.

Teller Contended, Not Implausibly, That Hydrogen Bombs Keep The Peace, Or At Least Prevent Thermonuclear War, Because The Consequences Of Warfare Between Nuclear Powers Are Now Too Dangerous. We Haven't Had A Nuclear War Yet, Have We? But All Such Arguments Assume That The Nuclear-armed Nations Are And Always Will Be, Without Exception, Rational Actors, And That Bouts Of Anger And Revenge And Madness Will Never Overtake Their Leaders (or Military And Secret Police Officers In Charge Of Nuclear Weapons). In The Century Of Hitler And Stalin, This Seems Ingenuous.

If We Ruin The Earth, There Is No Place Else To Go

Science Is Far From A Perfect Instrument Of Knowledge. It's Just The Best We Have.

I Believe That Part Of What Propels Science Is The Thirst For Wonder. It's A Very Powerful Emotion. All Children Feel It. In A First Grade Classroom Everybody Feels It; In A Twelfth Grade Classroom Almost Nobody Feels It, Or At Least Acknowledges It. Something Happens Between First And Twelfth Grade, And It's Not Just Puberty. Not Only Do The Schools And The Media Not Teach Much Skepticism, There Is Also Little Encouragement Of This Stirring Sense Of Wonder. Science And Pseudoscience Both Arouse That Feeling. Poor Popularizations Of Science Establish An Ecological Niche For Pseudoscience.

Your God Is Too Small For My Universe.

Science Is A Collaborative Enterprise, Spanning The Generations. When It Permits Us To See The Far Side Of Some New Horizon, We Remember Those Who Prepared The Way - Seeing For Them Also.

Frederick Douglas Taught That Literacy Is The Path From Slavery To Freedom. There Are Many Kinds Of Slavery And Many Kinds Of Freedom, But Reading Is Still The Path.

...the Idea Of A Spiritual Part Of Our Nature That Survives Death, The Notion Of An Afterlife, Ought To Be Easy For Religions And Nations To Sell. This Is Not An Issue Of Which We Might Anticipate Widespread Skepticism. People Will Want To Believe It, Even If The Evidence Is Meager To Nil... Compelling Testimony ... Provides That Our Personality, Character, Memory ... Resides In The Matter Of The Brain, It Is Easy Not To Focus On It, To Find Ways To Evade The Weight Of The Evidence.

Your Religion Assumes That People Are Children And Need A Boogeyman So They'll Behave. You Want People To Believe In God So They'll Obey The Law. That's The Only Means That Occurs To You: A Strict Secular Police Force, And The Threat Of Punishment By An All-seeing God For Whatever The Police Overlook. You Sell Human Beings Short.

Extraordinary Claim Requires Extraordinary Proof.

It Is Said That Men May Not Be The Dreams Of The God, But Rather That The Gods Are The Dreams Of Men.

The Passion To Explore Is At The Heart Of Being Human.

We Need To Reduce Military Budgets; Raise Living Standards; Engender Respect For Learning; Support Science, Scholarship, Invention, And Industry; Promote Free Inquiry; Reduce Domestic Coercion; Involve The Workers More In Managerial Decisions; And Promote Genuine Respect And Understanding Derived From An Acknowledgement Of Our Common Humanity And Our Common Jeopardy.

Common Humanity

My Deeply Held Belief Is That If A God Of Anything Like The Traditional Sort Exists, Our Curiosity And Intelligence Is Provided By Such A God. We Would Be Unappreciative Of That Gift If We Suppressed Our Passion To Explore The Universe And Ourselves.

Discussing The Possibilities Of Extraterrestrial Life: I Would Love It Even If They Were Short, Sullen, Grumpy And Sexually Obsessed. But There Just Isn't Any Good Evidence.

I Believe Our Future Depends Powerfully On How Well We Understand This Cosmos In Which We Float, Like A Mote Of Dust In The Morning Sky.

The Earth Is A Place. It Is By No Means The Only Place. It Is Not Even A Typical Place.

There Is Every Reason To Think That In The Coming Years Mars And Its Mysteries Will Become Increasingly Familiar To The Inhabitants Of The Planet Earth.

If We Long To Believe That The Stars Rise And Set For Us, That We Are The Reason There Is A Universe, Does Science Do Us A Disservice In Deflating Our Conceits?

The Universe Forces Those Who Live In It To Understand It.

[s]cience Has Itself Become A Kind Of Religion.

How Lucky We Are To Live In This Time / The First Moment In Human History / When We Are In Fact Visiting Other Worlds

Books Tap The Wisdom Of Our Species -- The Greatest Minds, The Best Teachers -- From All Over The World And From All Our History. And They're Patient.

The Beauty Of A Living Thing Is Not The Atoms That Go Into It, But The Way Those Atoms Are Put Together.

Every Kid Starts Out As A Natural-born Scientist, And Then We Beat It Out Of Them. A Few Trickle Through The System With Their Wonder And Enthusiasm For Science Intact.

There Is Never Only One Of Anything In Nature.

In College, In The Early 1950s, I Began To Learn A Little About How Science Works, The Secrets Of Its Great Success, How Rigorous The Standards Of Evidence Must Be If We Are Really To Know Something Is True, How Many False Starts And Dead Ends Have Plagued Human Thinking, How Our Biases Can Colour Our Interpretation Of Evidence, And How Often Belief Systems Widely Held And Supported By The Political, Religious And Academic Hierarchies Turn Out To Be Not Just Slightly In Error, But Grotesquely Wrong.

It Means Nothing To Be Open To A Proposition We Don't Understand.

We Are Not Smart Enough To Decide Which Pieces Of Knowledge Are Permissible And Which Are Not.

The Prediction I Can Make With The Highest Confidence Is That The Most Amazing Discoveries Will Be The Ones We Are Not Today Wise Enough To Foresee.

The Simplest Thought, Like The Concept Of The Number One, Has An Elaborate Logical Underpinning.

The Visions We Offer Our Children Shape The Future.

The Truth May Be Puzzling. It May Take Some Work To Grapple With. It May Be Counterintuitive. It May Contradict Deeply Held Prejudices. It May Not Be Consonant With What We Desperately Want To Be True. But Our Preferences Do Not Determine What's True.

One Of The Greatest Gifts Adults Can Give - To Their Offspring And To Their Society - Is To Read To Children.

Nature Does Not Always Conform To Our Predispositions And Preferences, To What We Deem Comfortable And Easy To Understand.

Ufos: The Reliable Cases Are Uninteresting And In The Interesting Cases Are Unreliable.

I Think The Health Of Our Civilization, The Depth Of Our Awareness About The Underpinnings Of Our Culture, And Our Concern For The Future, Can All Be Tested By How Well We Support Our Libraries.

Think Of How Many Religions Attempt To Validate Themselves With Prophecy. Think Of How Many People Rely On These Prophecies, However Vague, However Unfulfilled, To Support Or Prop Up Their Beliefs. Yet Has There Ever Been A Religion With The Prophetic Accuracy And Reliability Of Science? ... No Other Human Institution Comes Close.

I Am Not An Atheist. An Atheist Is Someone Who Has Compelling Evidence That There Is No Judeo-christian-islamic God. I Am Not That Wise, But Neither Do I Consider There To Be Anything Approaching Adequate Evidence For Such A God. Why Are You In Such A Hurry To Make Up Your Mind? Why Not Simply Wait Until There Is Compelling Evidence?

If We Continue To Accumulate Only Power And Not Wisdom, We Will Surely Destroy Ourselves.

I Never Said It. Honest. Oh, I Said There Are Maybe 100 Billion Galaxies And 10 Billion Trillion Stars. It's Hard To Talk About The Cosmos Without Using Big Numbers. I Said "billion" Many Times On The Cosmos Television Series, Which Was Seen By A Great Many People. But I Never Said "billions And Billions." For One Thing, It's Too Imprecise. How Many Billions Are "billions And Billions"? A Few Billion? Twenty Billion? A Hundred Billion? "billions And Billions" Is Pretty Vague. When We Reconfigured And Updated The Series, I Checked-and Sure Enough, I Never Said It.

Much Of Human History Can, I Think, Be Described As A Gradual And Sometimes Painful Liberation From Provincialism, The Emerging Awareness That There Is More To The World Than Was Generally Believed By Our Ancestors.

If The Greenhouse Effect Is A Blanket In Which We Wrap Ourselves To Keep Warm, Nuclear Winter Kicks The Blanket Off.

The Universe Seems Neither Benign Nor Hostile, Merely Indifferent.

Observation: I Can't See A Thing. Conclusion: Dinosaurs.

What A Marvelous Cooperative Arrangement - Plants And Animals Each Inhaling Each Other's Exhalations, A Kind Of Planet-wide Mutual Mouth-to-stoma Resuscitation, The Entire Elegant Cycle Powered By A Star 150 Million Kilometers Away.

Science Is A Way To Not Fool Ourselves.

I Don't Want To Believe. I Want To Know.

The Politicians And The Religious Leaders And The Weapons Scientists Have Been At It For A Long Time And They've Made A Thorough Mess Of It. I Mean, We're In Deep Trouble.

Science Arouses A Soaring Sense Of Wonder. But So Does Pseudoscience. Sparse And Poor Popularizations Of Science Abandon Ecological Niches That Pseudoscience Promptly Fills. If It Were Widely Understood That Claims To Knowledge Require Adequate Evidence Before They Can Be Accepted, There Would Be No Room For Pseudoscience.

There Is Perhaps No Better A Demonstration Of The Folly Of Human Conceits Than This Distant Image Of Our Tiny World.

The Lifetime Of A Human Being Is Measured By Decades, The Lifetime Of The Sun Is A Hundred Million Times Longer. Compared To A Star, We Are Like Mayflies, Fleeting Ephemeral Creatures Who Live Out Their Lives In The Course Of A Single Day.

If We Could Travel Into The Past, It's Mind-boggling What Would Be Possible. For One Thing, History Would Become An Experimental Science, Which It Certainly Isn't Today. The Possible Insights Into Our Own Past And Nature And Origins Would Be Dazzling. For Another, We Would Be Facing The Deep Paradoxes Of Interfering With The Scheme Of Causality That Has Led To Our Own Time And Ourselves. I Have No Idea Whether It's Possible, But It's Certainly Worth Exploring.

We Are Made Of Starstuff.

Who Will Speak For Planet Earth?

The Notion That Science And Spirituality Are Somehow Mutually Exclusive Does A Disservice To Both.

All Inquires Carry With Them Some Element Of Risk. There Is No Guarantee That The Universe Will Conform To Our Predispositions.

Guarantees That

In The Way That Scepticism Is Sometimes Applied To Issues Of Public Concern, There Is A Tendency To Belittle, To Condescend, To Ignore The Fact That, Deluded Or Not, Supporters Of Superstition And Pseudoscience Are Human Beings With Real Feelings, Who, Like The Sceptics, Are Trying To Figure Out How The World Works And What Our Role In It Might Be. Their Motives Are In Many Cases Consonant With Science. If Their Culture Has Not Given Them All The Tools They Need To Pursue This Great Quest, Let Us Temper Our Criticism With Kindness. None Of Us Comes Fully Equipped.

Too Much Openness And You Accept Every Notion, Idea, And Hypothesis-which Is Tantamount To Knowing Nothing. Too Much Skepticism-especially Rejection Of New Ideas Before They Are Adequately Tested-and You're Not Only Unpleasantly Grumpy, But Also Closed To The Advance Of Science. A Judicious Mix Is What We Need.

Our Species Needs, And Deserves, A Citizenry With Minds Wide Awake And A Basic Understanding Of How The World Works.

We Have Begun To Contemplate Our Origins: Starstuff Pondering The Stars; Organized Assemblages Of Ten Billion Billion Billion Atoms Considering The Evolution Of Atoms; Tracing The Long Journey By Which, Here At Least, Consciousness Arose.

It Is Far Better To Grasp The Universe As It Really Is Than To Persist In Delusion, However Satisfying And Reassuring.

Our Perceptions Are Fallible. We Sometimes See What Isn't There. We Are Prey To Optical Illusions. Occasionally We Hallucinate. We Are Error-prone.

Optical Illusions

The Way To Find Out About Our Place In The Universe Is By Examining The Universe And By Examining Ourselves - Without Preconceptions, With As Unbiased A Mind As We Can Muster.

I Think If We Ever Reach The Point Where We Think We Thoroughly Understand Who We Are And Where We Came From, We Will Have Failed.

I Believe That Even A Smattering Of Such Findings In Modern Science And Mathematics Is Far More Compelling And Exciting Than Most Of The Doctrines Of Pseudoscience, Whose Practitioners Were Condemned As Early As The Fifth Century B.c. By The Ionian Philosopher Heraclitus As “nigh -walkers, Magicians, Priests Of Bacchus, Priestesses Of The Wine-vat, Mystery-mongers.” But Science Is More Intricate And Subtle, Reveals A Much Richer Imiverse, And Powerfully Evokes Our Sense Of Wonder.

If We Can't Think For Ourselves, If We're Unwilling To Question Authority, Then We're Just Putty In The Hands Of Those In Power.

Scientific Method

Science Is A Way To Call The Bluff Of Those Who Only Pretend To Knowledge. It Is A Bulwark Against Mysticism, Against Superstition, Against Religion Misapplied To Where It Has No Business Being.

[science] Is Not Perfect. It Can Be Misused. It Is Only A Tool. But It Is By Far The Best Tool We Have, Self-correcting, Ongoing, Applicable To Everything. It Has Two Rules. First: There Are No Sacred Truths; All Assumptions Must Be Critically Examined; Arguments From Authority Are Worthless. Second: Whatever Is Inconsistent With The Facts Must Be Discarded Or Revised. ... The Obvious Is Sometimes False; The Unexpected Is Sometimes True.

We Are Star Stuff Which Has Taken Its Destiny Into Its Own Hands. The Loom Of Time And Space Works The Most Astonishing Transformations Of Matter.

If God Is Omnipotent And Omniscient, Why Didn't He Start The Universe Out In The First Place So It Would Come Out The Way He Wants? Why's He Constantly Repairing And Complaining? No, There's One Thing The Bible Makes Clear: The Biblical God Is A Sloppy Manufacturer. He's Not Good At Design, He's Not Good At Execution. He'd Be Out Of Business, If There Was Any Competition.

Science Is A Way Of Thinking Much More Than It Is A Body Of Knowledge.

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