No men who really think deeply about women retain a high opinion of them; men either despise women or they have never thought seriously about them.

Logic and ethics are fundamentally the same, they are no more than duty to oneself

It is not the fear of death which creates the desire for immortality, but the desire for immortality which causes the fear of death.

The fixed stars signify the angel in man. That is why man orients himself by them; and that is why women have no appreciation for the starry sky; because they have no sense of the angel in man.

Mankind occurs as male or female, as something or nothing. Woman has no share in ontological reality, no relation to the thing-in-itself, which, in the deepest interpretation, is the absolute, is God. Man in his highest form, the genius, has such a relation, and for him the absolute is either the conception of the highest worth of existence, in which case he is a philosopher; or it is the wonderful fairyland of dreams, the kingdom of absolute beauty, and then he is an artist.

The Jew is an inborn Communist.

The man of genius is he whose ego has acquired consciousness. He is enabled by it to distinguish the fact that others are different, to perceive the "ego" of other men, even when it is not pronounced enough for them to be conscious of it themselves. But it is only he who feels that every other man is also an ego, a monad, an individual centre of the universe, with specific manner of feeling and thinking and a distinct past, he alone is in a position to avoid making use of his neighbours as means to an end.