Every extension of knowledge arises from making the conscious the unconscious.

Whenever I climb I am followed by a dog called 'Ego'.

What is the task of higher education? To make a man into a machine. What are the means employed? He is taught how to suffer being bored.

I despise mystics, they fancy themselves so deep, when they aren't even superficial.

A thought comes when it will, not when I will.

Stupid as a man, say the women: cowardly as a woman, say the men. Stupidity in a woman is unwomanly.

Good manners disappear in proportion as the influence of a Court and an exclusive aristocracy lessens; this decrease can be plainly observed from decade to decade by those who have an eye for public behavior, which grows visibly.