“Il arrive un âge où ils ne sont plus séduisants, ni «en forme», comme on dit. Ils ne peuvent plus boire et ils pensent encore aux femmes; seulement ils sont obligés de les payer, d'accepter des quantités de petites compromissions pour échapper à leur solitude. Ils sont bernés, malheureux. C'est ce moment qu'ils choisissent pour devenir sentimentaux et exigeants… J'en ai vu beaucoup devenir ainsi des sortes d'épaves. "A time comes when they are no longer attractive or in good form. They can't drink any more, and they still hanker after women, only then they have to pay and make compromises in order to escape from their loneliness: they have become just figures of fun. They grow sentimental and hard to please. I haveseen many who have gone the same way.”

“In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with Annie.[Dedication to Sagan's wife, Ann Druyan, in Cosmos]”

“If it takes a little myth and ritual to get us through a night that seems endless, who among us cannot sympathize and understand?”

“The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five.”

“Billions of years from now our sun, then a distended red giant star, will have reduced Earth to a charred cinder. But the Voyager record will still be largely intact, in some other remote region of the Milky Way galaxy, preserving a murmur of an ancient civilization that once flourished — perhaps before moving on to greater deeds and other worlds — on the distant planet Earth.”

“We are a way for the cosmos to know itself”

“The idea that God is an oversized white male with a flowing beard, who sits in the sky and tallies the fall of every sparrow is ludicrous. But if by 'God,' one means the set of physical laws that govern the universe, then clearly there is such a God. This God is emotionally unsatisfying... it does not make much sense to pray to the law of gravity.”

“We are star stuff harvesting sunlight.”

“If we long for our planet to be important, there is something we can do about it. We make our world significant by the courage of our questions and by the depth of our answers.”

“The Cosmos is all that is or was or ever will be. Our feeblest contemplations of the Cosmos stir us -- there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, of falling from a height. We know we are approaching the greatest of mysteries.”

“My main reason for scepticism about the Huxley/Sagan theory is that the human brain is demonstrably eager to see faces in random patterns, as we know from scientific evidence, on top of the numerous legends about faces of Jesus, or the Virgin Mary, or Mother Teresa, being seen on slices of toast, or pizzas, or patches of damp on a wall. This eagerness is enhanced if the pattern departs from randomness in the specific direction of being symmetrical.”