All essential knowledge relates to existence, or only such knowledge as has an essential relationship to existence is essential knowledge.

There are two kinds of geniuses. The characteristic of the one is roaring, but the lightning is meagre and rarely strikes; the other kind is characterized by reflection by which it constrains itself or restrains the roaring. But the lightning is all the more intense; with the speed and sureness of lightning it hits the selected particular points - and is fatal.

What a difference! Under the esthetic sky, everything is buoyant, beautiful, transient! when ethics arrives on the scene, everything becomes harsh, angular and infinitely boring

A genius may perhaps be a century ahead of his age and hence stands there as a paradox, but in the end, the race will assimilate what was once a paradox, so it is no longer paradoxical.

Ulysses was not comely, but he was eloquent, Yet he fired two goddesses of the sea with love

Since boredom advances and boredom is the root of all evil, no wonder, then, that the world goes backwards, that evil spreads. This can be traced back to the very beginning of the world. The gods were bored; therefore they created human beings.

But doubt is wily and cunning and never, as it is sometimes said to be, loud or defiant. It is unassuming and sly, not bold or assertive - and the more unassuming, the more dangerous.