There is an element of the busybody in our conception of virtue: unless a man makes himself a nuisance to a great many people, we do not think he can be an exceptionally good man.

Of all forms of caution, caution in love is perhaps the most fatal to true happiness.

The life of man is a long march through the night, surrounded by invisible foes, tortured by weariness and pain, towards a goal that few can hope to reach, and where none may tarry long.

Conventional people are roused to fury by departure from convention, largely because they regard such departure as a criticism of themselves.

Hitler is an outcome of Rousseau.

It is a natural propensity to attribute misfortune to someone's malignity.

Mathematics rightly viewed possesses not only truth but supreme beauty.