Nothing is more witty and grotesque than ancient mythology and Christianity; that is because they are so mystical.

The few existing writings against Kantian philosophy are the most important documents in the case history of sound common sense.

A genuinely free and educated man should be able to tune himself, as one tunes a musical instrument, absolutely arbitrarily, at his convenience at any time and to any degree, philosophically or philologically, critically or poetically, historically or rhetorically, in ancient or modern form.

One can only become a philosopher, but not be one. As one believes he is a philosopher, he stops being one.

The analytical writer observes the reader as he is; accordingly, he makes his calculation, sets his machine to make the appropriate effect on him. The synthetic writer constructs and creates his own reader; he does not imagine him as resting and dead, but lively and advancing toward him. He makes that which he had invented gradually take shape before the reader's eyes, or he tempts him to do the inventing for himself. He does not want to make a particular effect on him, but rather enters into a solemn relationship of innermost symphilosophy or sympoetry.

Even a friendly conversation which cannot be at any given moment be broken off voluntarily with complete arbitrariness has something illiberal about it. An artist, however, who is able and wants to express himself completely, who keeps nothing to himself and would wish to say everything he knows, is very much to be pitied.

Most thoughts are only profiles of thoughts. They must be inverted and synthesized with their antipodes. Thus many philosophical writings become very interesting which would not have been so otherwise.