The psychical condition of men’s minds may be compared with a set of bells close together, and so arranged that in the ordinary man a bell rings only… - Otto Weininger

Great men take themselves and the world too seriously to become what is called merely intellectual. Men who are merely intellectual are insincere; they are people who have never really been deeply engrossed by things and who do not feel an overpowering desire for production. All that they care about is that their work should glitter and sparkle like a well-cut stone, not that it should illuminate anything. They are more occupied with what will be said of what they think than by the thoughts themselves.

Colour-blindness always extends to the complementary colours. Those who are red blind are also green blind; those who are blind to blue have no consciousness of yellow. This law holds good for all mental phenomena; it is a fundamental condition of consciousness.

That is why man can also never understand himself: For he is himself a timeless act; an act which he performs continuously, and there is no moment in which he might not perform it, as there would have to be to understand himself.