History is the zoology of the human race.

Mankind is getting smarter every day. Actually, it only seems so. At least we are making progress. We're progressing, to be sure, ever more deeply into the forest.

Science and art, or by the same token, poetry and prose differ from one another like a journey and an excursion. The purpose of the journey is its goal, the purpose of an excursion is the process.

Distinctly different as a child, as an adolescent, in his prime and in his old age, man considers himself as one, not because he acts, but because he knows.

The cradle of the future is the grave of the past.

Metaphysics must be based on what exists, for it has the task of explicating it.

A love that dies has never lived.