Carl Sagan Quotes

Through the reading of popular scientific books I soon reached the conviction that much of the stories of the Bible could not be true. The consequence was a positively fanatic free thinking coupled with the impression that youth is intentionally being deceived by the State through lies; it was a crushing impression. Suspicion against every kind of authority grew out of this experience, a skeptical attitude towards the convictions which were alive in any specific social environment — an attitude which has never again left me, even though later on, because of a better insight into the causal connections, it lost some of its original poignancy.

These are the folks who brought us the hydrogen bomb. Forgive me, Lord, for not being more grateful to these kind souls

You squeeze the eyedropper, and a drop of pond water drips out onto the microscope stage. You look at the projected image. The drop is full of life - strange beings swimming, crawling, tumbling; high dramas of pursuit and escape, triumph and tragedy. This is a world populated by beings far more exotic than in any science fiction movie...

But our openness to the dazzling possibilities presented by modern science must be tempered by some hard-nosed skepticism. Many interesting possibilities simply turn out to be wrong. An openness to new possibilities and a willingness to ask hard questions are both required to advance our knowledge. And the asking of tough questions has an ancillary benefit: political and religious life in America, especially in the last decade and a half, has been marked by an excessive public credulity, an unwillingness to ask difficult questions, which has produced a demonstrable impairment in our national health. Consumer skepticism makes quality products. This may be why governments and churches and school systems do not exhibit unseemly zeal in encouraging critical thought. They know they themselves are vulnerable.

For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring

The trapdoor beneath our feet swings open. We find ourselves in bottomless free fall. We are lost in a great darkness, and there’s no one to send out a search party. Given so harsh a reality, of course we’re tempted to shut our eyes and pretend that we’re safe and snug at home, that the fall is only a bad dream.

I know of no significant advance in science that did not require major inputs from both cerebral hemispheres. This is not true for art, where apparently there are no experiments by which capable, dedicated and unbiased observers can determine to their mutual satisfaction which works are great.

Matter is composed chiefly of nothing.

If I finish a book a week, I will read only a few thousand books in my lifetime, about a tenth of a percent of the contents of the greatest libraries of our time. The trick is to know which books to read.

We are haltingly, tentatively breaking the shackles of the earth ... but our energies are directed far more toward war.

Hypnotized by mutual mistrust, almost never concerned for the species or the planet, the nations prepare for death.

And because what we are doing is so horrifying, we tend not to think of it much.

But what we do not consider we are unlikely to put right.

If you’re only sceptical, then no new ideas make it through to you. You never learn anything. You become a crochety misanthrope convinced that nonsense is ruling the world. (There is, of course, much data to support you.) Since major discoveries in the borderlines of science are rare, experience will tend to confirm your grumpiness. But every now and then a new idea turns out to be on the mark, valid and wonderful. If you’re too resolutely and uncompromisingly sceptical, you’re going to miss (or resent) the transforming discoveries in science, and either way you will be obstructing understanding and progress. Mere scepticism is not enough.

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.

Every age has its peculiar folly; some scheme, project, or phantasy into which it plunges, spurred on either by the love of gain, the necessity of excitement, or the mere force of imitation. Failing in these, it has some madness, to which it is goaded by political or religious causes, or both combined.

neither we nor our planet enjoys a privileged position in Nature. This insight has since been applied upward to the stars, and sideways to many subsets of the human family, with great success and invariable opposition. It has been responsible for major advances in astronomy, physics, biology, anthropology, economics and politics. I wonder if its social extrapolation is a major reason for attempts at its suppression.

Toen onze genen niet meer alle informatie konden opslaan die nodig was om te overleven, vonden we langzamerhand de hersenen uit. Maar toen kwam de tijd, misschien 10.000 jaar geleden, dat we meer moesten weten dan de hersenen gevoeglijk konden bevatten. Dus leerden we enorme hoeveelheden informatie buiten ons lichaam op te slaan. Wij zijn voor zover we weten de enige soort op onze planeet die een gemeenschappelijk geheugen heeft uitgevonden dat noch in onze genen noch in onze hersenen zetelt. De opslagplaats van dat geheugen wordt bibliotheek genoemd.
Een boek wordt gemaakt van een boom. Het is een verzameling vlakke, buigzame delen (nog steeds 'bladen' genoemd), bedrukt met donker gekleurde kriebels. Eén oogopslag en je hoort de stem van iemand anders - misschien een persoon die al duizenden jaren dood is. Millennia na dato spreekt de schrijver, duidelijk en zwijgend, binnen in ons hoofd. De schrijfkunst is misschien wel de grootste van alle menselijke vindingen; ze bindt mensen te zamen, bewoners van ver verwijderde tijdperken die elkaar nooit hebben gekend. Boeken verbreken de kluisters van de tijd, een bewijs dat de mens een tovenaar kan zijn.