Even in a personal sense, after all, art is an intensified life. By art one is more deeply satisfied and more rapidly used up. It engraves on the countenance of its servant the traces of imaginary and intellectual adventures, and even if he has outwardly existed in cloistral tranquility, it leads in the long term to overfastidiousness, over-refinement, nervous fatigue and overstimulation, such as can seldom result from a life of the most extravagant passions and pleasures.

Nothing is more curious and awkward than the relationship of two people who only know each other with their eyes — who meet and observe each other daily, even hourly and who keep up the impression of disinterest either because of morals or because of a mental abnormality. Between them there is listlessness and pent-up curiosity, the hysteria of an unsatisfied, unnaturally suppressed need for communion and also a kind of tense respect. Because man loves and honors man as long as he is not able to judge him, and desire is a product of lacking knowledge.

The Freudian theory is one of the most important foundation stones for an edifice to be built by future generations, the dwelling of a freer and wiser humanity.

Tolerance becomes a crime when applied to evil.

I stand between two worlds. I am at home in neither, and I suffer in consequence. You artists call me a bourgeois, and the bourgeois try to arrest me...I don't know which makes me feel worse.

Time cools, time clarifies; no mood can be maintained quite unaltered through the course of hours.

Reduced to a miserable mass level, the level of a Hitler, German Romanticism broke out into hysterical barbarism.