The history of mankind is his character.

Every day look at a beautiful picture, read a beautiful poem, listen to some beautiful music, and if possible, say some reasonable thing.

To make converts is the natural ambition of everyone.

Reasonable men are the best dictionaries of conversation.

If the mass of people hesitate to act, strike with swiftly and with boldness, the brave heart that understands and seizes opportunity can everything.

All ages have said and repeated that one should strive to know one's self. This is a strange demand which no one up to now has measured up to and, strictly considered, no one should. With all their study and effort, people are directed to what is outside, to the world about them, and they are kept busy coming to know this and to master it to the extent that their purposes require. . . . How can you come to know yourself? Never by thinking, always by doing. Try to do your duty, and you'll know right away what you amount to. And what is your duty? Whatever the day calls for.

A man who cannot command himself will always be a slave.