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.
Events do not just happen, but arrive by appointment.
All philosophy lies in two words, sustain and abstain.
Have the wisdom to know what cannot be changed, and the strength to change what can.
Never say of anything I have lost it, only say that I have given it back.
It is your own convictions which compels you; that is, choice compels choice.