No great thing is created suddenly.
Difficulty shows what men are. Therefore when a difficulty falls upon you, remember that God, like a trainer of wrestlers, has matched you with a rough young man. Why? So that you may become an Olympic conqueror; but it is not accomplished without sweat.
No man is disturbed by things, but by his opinion about things.
Do not laugh much or often or unrestrainedly.
It's not what happens to you, but how you react to it that matters.
It is no easy thing for a principle to become a man's own unless each day he maintains it and works it out in his life.