For better or worse, man is the tool-using animal, and as such he has become the lord of creation. When he is lord also of himself, he will deserve his self-chosen title homo sapiens.

The game of life is worth playing, but the struggle is the prize.

The whole of nature, as has been said, is a conjugation of the verb to eat, in the active and in the passive.

Philosophy means thinking things out for oneself. Ultimately, there can be only one true philosophy, since reason is one and we all live in the same world.

What is originality? Undetected plagiarism.

The wealth of a soul is measured by how much it can feel; its poverty by how little.

Lutheranism is essentially German... It worships a God who is neither just nor merciful.