Carl Sagan Quotes, Thinking Quotes, Who We Are Quotes

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.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Thinking Quotes , Who We Are Quotes

In the fabric of space and in the nature of matter, as in a great work of art, there is, written small, the artist's signature.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Art Quotes , Nature Quotes

He didn't want to believe. He wanted to know.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Believe Quotes , Thinking Quotes

Centuries hence, when current social and political problems may seem as remote as the problems of the Thirty Years' War are to us, our age may be remembered chiefly for one fact: It was the time when the inhabitants of the earth first made contact with the vast cosmos in which their small planet is embedded.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , War Quotes , Years Quotes

Any sufficiently crisp question can be answered by a single binary digit-0 or 1, yes or no.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Binary Quotes , Yes Or No Quotes

Extraordinary claims demand extraordinary evidence

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Demand Quotes , Claims Quotes

Thus the recent rapid evolution of human intelligence is not only the cause of but also the only conceivable solution to the many serious problems that beset us.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Causes Quotes , Serious Quotes

Cleverly designed experiments are the key.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Keys Quotes

We live in a vast and awesome universe in which, daily, suns are made and worlds destroyed, where humanity clings to an obscure clod of rock.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Rocks Quotes , Humanity Quotes

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.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Comfort Quotes , Cosmos Quotes

The hole in the ozone layer is a kind of skywriting. At first it seemed to spell out our continuing complacency before a witch's brew of deadly perils. But perhaps it really tells of a newfound talent to work together to protect the global environment.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Ozone Layer Quotes , Together Quotes

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.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Song Quotes , Years Quotes

Our passion for learning ... is our tool for survival.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Passion Quotes , Learning Quotes

The cannabis experience has greatly improved my appreciation for art, a subject which I had never much appreciated before.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Appreciation Quotes , Art Quotes

The fossil record implies trial and error, an inability to anticipate the future, features inconsistent with an efficient Great Designer (although not with a Designer of a more remote and indirect temperament)

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Errors Quotes , Inability Quotes

My wonder button is being pushed all the time.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Buttons Quotes

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.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Ocean Quotes , Perfect Days Quotes

[One's] inability to invalidate your hypothesis is not at all the same thing as proving it true.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Inability Quotes , Hypothesis Quotes

What is called for is an exquisite balance between two conflicting needs: the most skeptical scrutiny of all hypotheses that are served up to us and at the same time a great openness to new ideas. If you are only skeptical, then no new ideas make it through to you. On the other hand, if you are open to the point of gullibility and have not an ounce of skeptical sense in you, then you cannot distinguish useful ideas from the worthless ones.

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Hands Quotes , Ideas Quotes

It seems madness to say, 'We're worried that they're going to become addicted to marijuana' -- there's no evidence whatever that it's an addictive drug, but even if it were, these people are dying, what are we saving them from?

4 years ago

Message Copied

Tags : Carl Sagan Quotes , Marijuana Quotes , People Quotes