Whereas the man of action binds his life to reason and its concepts so that he will not be swept away and lost, the scientific investigator builds his hut right next to the tower of science so that he will be able to work on it and to find shelter for himself beneath those bulwarks which presently exist.

Mathematics would certainly have not come into existence if one had known from the beginning that there was in nature no exactly straight line, no actual circle, no absolute magnitude.

Behind your thoughts and feelings, my brother, there stands a mighty ruler. an unknown sage - whose name is self. In yourt body he dwells; he is your body. There is more reason in your body than in your best wisdom.

The grand style follows suit with all great passion. It disdains to please, it forgets to persuade. It commands. It wills.

Some die too young, some die too old; the precept sounds strange, but die at the right age.

A lack of the historical sense is the hereditary fault of all philosophers.

Morality is the best of all devices for leading mankind by the nose.