Men! The only animal in the world to fear!

Man is the only animal that blushes. Or needs to.

Man is the only animal for whom his own existence is a problem which he has to solve.

Man is the only creature who refuses to be what he is.

Man is the only living being who has a developed self-awareness and death-awareness.

Man prides himself on being the only animal who can modify his nature, yet when he chooses to do so he is called a phony.

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.

Man, of all the animals, is probably the only one to regard himself as a great delicacy.

Man is the only animal that can remain on friendly terms with the victims he intends to eat until he eats them.

Man is a clever animal who behaves like an imbecile.

Of all the animals, man is the only one that is cruel. He is the only one that inflicts pain for the pleasure of doing it.

Man's life cannot "be lived" by repeating the pattern of his species; he must live. Man is the only animal that can be bored, that can be discontented, that can feel evicted from paradise. Man is the only animal for whom his own existence is a problem which he has to solve and from which he cannot escape. He cannot go back to the prehuman state of harmony with nature; he must proceed to develop his reason until he becomes the master of nature, and of himself.

Man is the only living species that has the power to act as his own destroyer—and that is the way he has acted through most of his history.

Man is the only animal whose desires increase as they are fed; the only animal that is never satisfied.