Restlessness is the hallmark of existence.

A reproach can only hurt if it hits the mark. Whoever knows that he does not deserve a reproach can treat it with contempt.

Human existence is an error...it is bad today and every day it gets worse, until the worst happens.

Were an Asiatic to ask me for a definition of Europe, I should be forced to answer him: It is that part of the world which is haunted by the incredible delusion that man was created out of nothing, and that his present birth is his first entrance into life.

Money is human happiness in the abstract; he, then, who is no longer capable of enjoying human happiness in the concrete devotes himself utterly to money.

A pessimist is an optimist in full possession of the facts.

Our civilized world is nothing but a great masquerade. You encounter knights, parsons, soldiers, doctors, lawyers, priests, philosophers and a thousand more: but they are not what they appear - they are merely masks... Usually, as I say, there is nothing but industrialists, businessmen and speculators concealed behind all these masks.