"Jean Rostand" was a France/French biologist and philosopher.

Active as an experimental biologist, Rostand became famous for his work as a science writer, as well as a philosopher and an activist. His scientific work covered a variety of biological fields such as amphibian embryology, parthenogenesis and Teratology#Teratogenesis/teratogeny, while his literary output extended into popular science, history of science and philosophy. His work in the area of cryogenics gave the idea of cryonics to Robert Ettinger.

Rostand Island in Antarctica is named after him.

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One kills a man, one is an assassin; one kills millions, one is a conqueror; one kills everybody, one is a god.

I prefer the honest jargon of reality to the outright lies of books.

A married couple are well suited when both partners usually feel the need for a quarrel at the same time.

Kill one man, and you are a murderer. Kill millions of men, and you are a conqueror. Kill them all, and you are a god.

Certain brief sentences are peerless in their ability to give one the feeling that nothing remains to be said.

The only things one can admire at length are those one admires without knowing why.

Kill one man and you are a murderer. Kill millions and you are a conqueror. Kill all and you are a God.

To be an adult is to be alone.

I should have no use for a paradise in which I should be deprived of the right to prefer hell.

We spend our time envying people whom we wouldn't wish to be.

My pessimism extends to the point of even suspecting the sincerity of other pessimists.

Nothing leads the scientist so astray as a premature truth.

Stupidity, outrage, vanity, cruelty, iniquity, bad faith, falsehood / we fail to see the whole array when it is facing in the same direction as we.