One should not wrongly reify 'cause' and 'effect,' as the natural scientists do (and whoever, like them, now 'naturalizes' in his thinking), according to the prevailing mechanical doltishness which makes the cause press and push until it 'effects' its end; one should use 'cause' and 'effect' only as pure concepts, that is to say, as conventional fictions for the purpose of designation and communication-not for explanation.

All I need is a sheet of paper and something to write with, and then I can turn the world upside down.

I know of no better life purpose than to perish in attempting the great and the impossible.

Be careful who you choose as your enemy because that's who you become most like.

We praise or blame as one or the other affords more opportunity for exhibiting our power of judgement.

Only with the ultimate knowledge of all things will man have come to know himself. For things are but the boundaries of man.

I do not know what the spirit of a philosopher could more wish to be than a good dancer. For the dance is his ideal, also his fine art, finally also the only kind of piety he knows, his 'divine service.'