Only as an aesthetic product can the world be justified to all eternity.

Woman understands children better than man does, but man is more childlike than woman.

Ultimately, no one can extract from things, books included, more than he already knows.

We seldom break our leg so long as life continues a toilsome upward climb. The danger comes when we begin to take things easily and choose the convenient paths.

A matter that becomes clear ceases to concern us.--What was that god thinking who counseled, "Know thyself!" Did he perhaps mean,"Cease to concern yourself! Become objective!"--And Socrates?--And "scientific men"?

A strong and well-constituted man digests his experiences (deeds and misdeeds all included) just as he digests his meats, even when he has some tough morsels to swallow.

Once we have found ourselves, we must understand how from time to time to lose--and then to find--ourselves once again: assuming,that is, that we are thinkers. For a thinker it is a drawback to be bound to a single person all the time.