A woman may very well form a friendship with a man, but for this to endure, it must be assisted by a little physical antipathy.

There is no being behind doing, effecting, becoming; "the doer" is merely a fiction added to the deed—the deed is everything.

My formula for happiness: a Yes, a No, a straight line, a goal.

There are many kinds of eyes. Even the sphinx has eyes - and consequently there are many kinds of 'truths,' and consequently there is no truth.

People are always angry at anyone who chooses very individual standards for his life; because of the extraordinary treatment which that man grants to himself, they feel degraded like ordinary beings.

Eventually one must do everything oneself in order to know something; which means that one has much to do!

He who fights too long against dragons becomes a dragon himself; and if you gaze too long into the abyss, the abyss will gaze into you.