Dr. Carl Sagan Quotes

Our loyalties are to the species and the planet. We speak for Earth. Our obligation to survive is owed not just to ourselves but also to that Cosmos, ancient and vast, from which we spring.

Dr. Carl Sagan

... the use of our intelligence quite properly gives us pleasure. In this respect the brain is like a muscle. When we think well, we feel good. Understanding is a kind of ecstasy.

Dr. Carl Sagan

Knowing a great deal is not the same as being smart; intelligence is not information alone but also judgment, the manner in which information is collected and used

Dr. Carl Sagan

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.

Dr. Carl Sagan

Somewhere, something incredible is waiting to be known

Dr. Carl Sagan

The universe is not required to be in perfect harmony with human ambition.

Dr. Carl Sagan

We've arranged a civilization in which most crucial elements profoundly depend on science and technology.

Dr. Carl Sagan

Somewhere, something incredible is waiting to be known.

Dr. Carl Sagan

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

Dr. Carl Sagan

Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.

Dr. Carl Sagan

Absence of evidence is not evidence of absence.

Dr. Carl Sagan

A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.

Dr. Carl Sagan

A religion old or new, that stressed the magnificence of the universe as revealed by modern science, might be able to draw forth reserves of reverence and awe hardly tapped by the conventional faiths. Sooner or later, such a religion will emerge.

Dr. Carl Sagan

You know that's a really good argument; my position is mistaken', and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen

Dr. Carl Sagan

It is of interest to note that while some dolphins are reported to have learned English - up to fifty words used in correct context - no human being has been reported to have learned dolphinese.

Dr. Carl Sagan

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