There are two things parents should give their children roots and wings. Roots to give them bearing and a sense of belonging, but also wings to help free them from constraints and prejudices and give them other ways to travel (or rather, to fly).

Theories are usually the over-hasty efforts of an impatient understanding that would gladly be rid of phenomena, and so puts in their place pictures, notions, nay, often mere words.

The greatest happiness for the thinking person is to have explored the explorable and to venerate in equanimity that which cannotbe explored.

Everything factual is, in a sense, theory. The blue of the sky exhibits the basic laws of chromatics. There is no sense in looking for something behind phenomena: they are theory.

Please send me your last pair of shoes, worn out with dancing as you mentioned in your letter, so that I might have something to press against my heart.

One needs only to get old to become milder; I don't see anyone make a mistake I hadn't also made.

War is in truth a disease in which the juices that serve health and maintenance are used for the sole purpose of nourishing something foreign, something at odds with nature.