Epictetus

"We are not to give credit to the many, who say that none ought to be educated but the free but rather to the philosophers, who say that the well-educated alone are free."

"When you are offended at any man's fault, turn to yourself and study your own failings. Then you will forget your anger."

"The key is to keep company only with people who uplift you, whose presence calls forth your best."

"Make the best use of what is in your power, and take the rest as it happens."

"First learn the meaning of what you say, and then speak."

"It is not death or pain that is to be dreaded, but the fear of pain or death."