Men are disturbed not by the things that happen, but by their opinion of the things that happen.
It is my business, to manage carefully and dexterously whatever happens
To the rational being only the irrational is unendurable, but the rational is endurable.
Confident because of our caution
If you want to improve, be content to be thought foolish and stupid.
Never depend on the admiration of others for self-satisfaction. It is a fact of life that other people, even people who love you, will not necessarily agree with your ideas, understand you always, or share your enthusiasms.