Epictetus

“Attach yourself to what is spiritually superior, regardless of what other people think.”
“It is not death or pain that is to be dreaded, but the fear of pain or death.”
“Do not demand that things happen as you wish, but wish them to happen as they do happen, and you will go on well.”
“If you would be a philosopher, prepare to be questioned and laughed at.”
“Be silent for the most part; or, if you speak, say only what is necessary.”
“No great thing is created suddenly.”
“Circumstances do not make the man, they only reveal him to himself.”
“Wealth consists not in having great possessions, but in having few wants.”
“If you want to improve, be content to be thought foolish and stupid.”
“Only the educated are free.”
“No man is free who is not master of himself.”
“Don't explain your philosophy. Embody it.”
“First say to yourself what you would be; and then do what you have to do.”
“Make the best use of what is in your power, and take the rest as it happens.”
“It's not what happens to you, but how you react to it that matters.”
“Men are disturbed not by things, but by the views which they take of things.”