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We are at a crossroads in human history. Never before has there been a moment so simultaneously perilous and promising. We are the first species to have taken evolution into our own hands.

Carl Sagan

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Carl Sagan
Age: 62 †
Born: 1934
Born: November 9
Died: 1996
Died: December 20
Astronomer
Astrophysicist
Cosmologist
Naturalist
Non-Fiction Writer
Novelist
Physicist
Planetary Scientist
Science Communicator
Brooklyn
New York
Carl Edward Sagan
Sagan
Carl E. Sagan
Carl E Sagan
C. E. Sagan
C.E. Sagan
C E Sagan
C. Sagan
C Sagan
Sagan C
Sagan C.
Sagan C. E.
Sagan CE
Firsts
Species
Human
Evolution
Humans
Sin
First
Taken
Never
Moment
Perilous
History
Crossroads
Moments
Promising
Hands
Simultaneously

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We are...capable of using our compassion and our intelligence, our technology and our wealth, to make an abundant and meaningful life for every inhabitant of this planet. To enhance enormously our understanding of the Universe, and to carry us to the stars.
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Every time you look up at the sky, every one of those points of light is a reminder that fusion power is extractable from hydrogen and other light elements, and it is an everyday reality throughout the Milky Way Galaxy.
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If we do not speak for Earth, who will? If we are not committed to our own survival, who will be?
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Science is more than a body of knowledge. It's a way of thinking: a way of skeptically interrogating the universe.
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It is said that men may not be the dreams of the god, but rather that the gods are the dreams of men.
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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.
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If you want to save your child from polio, you can pray or you can inoculate....Try science.
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In Mozambique, the story goes, monkeys do not talk, because they know if they utter even a single word some man will come and put them to work.
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There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
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.. 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'
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We are star stuff which has taken its destiny into its own hands.
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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?
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The difference between physics and metaphysics is not that the practitioners of one are smarter than the practitioners of the other. The difference is that the metaphysicist has no laboratory.
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The notion that science and spirituality are somehow mutually exclusive does a disservice to both.
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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.
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But nature is always more subtle, more intricate, more elegant than what we are able to imagine.
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In all our searching, the only thing we've found that makes the emptiness bearable is each other.
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We are not smart enough to decide which pieces of knowledge are permissible and which are not.
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There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
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One of the great commandments of science is: 'Mistrust arguments from authority.'
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