"Life is a disease; and the only diference between one another is the stage of the disease at which he lives."

"A learned man is an idler who kills time with study. Beware of his false knowledge: it is more dangerous than ignorance."

"Lack of money is the root of all evil."

"Few people think more than two or three times a year. I have made an international reputation for myself by thinking once or twice a week."

"Do you think that the things people make fools of themselves about are any less real and true than the things they behave sensibly about? They are more true: they are the only things that are true."

"The moment we want to believe something, we suddenly see all the arguments for it, and become blind to the arguments against it."

"Each generation writes off earlier errors as the result of bad thinking, of less able minds--and then confidently embarks on making fresh errors of its own."

"A strong conviction that something must be done is the parent of many bad measures."

"If you suffer, thank God! -- it is a sure sign that you are alive."

"As a matter of self-preservation, a man needs good friends or ardent enemies, for the former instruct him and the latter take him to task."

"God is dead."

"The neurotic and the artist - since both live out the unconscious of the race - reveal to us what is going to emerge endemically in the society later on."