“Humankind differs from the animals only by a little and most people throw that away.”

“In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed.”

“Throw away that foolish idea of carrying aristocratic blood. For, all the drops of blood are the same in humans as in animals.”

“Man is the only animal that knows he's going to die, so we invent a heaven to keep from going crazy. Most people are hypnotized by organized religion from childhood.”

“There is very little difference in people, but that little difference makes a big difference. The little difference is attitude.”

“The only respect in which man is superior to animals is that he can die when he wants to, not just when he has to. Maybe it's the one freedom you can always count on — the freedom to throw your life away.”

“Man is the only animal that laughs and weeps; for he is the only animal that is struck with the difference between what things are, and what they ought to be.”

“If most people cast their lot with the latter, then evil will prey forever upon humankind, as wolves and tigers prey upon lambs.”

“The only difference between a human and an animal is in having inspiration.”

“Homo sapiens is a child of the most ancient humans, resulting from their self-survival. Therefore, a tribute to them is love for humankind.”