Epictetus

"A person's true delight is in doing his duty."

"We suffer more from our imagination than from reality."

"The philosopher's stone is to know thyself."

"Virtue is our highest good."

"A slave is not the person who must serve, but the person who must obey."

"What nature reveals to us is that we should revere what comes naturally."

"Some things are within our power, some things are not."

"You will never be truly happy until you learn to regard your own thoughts as insignificant."

"Do not demand that others share your values; work on yourself to make them valuable."

"It is not possible for a man to be truly free when he is a slave to his body."

"A man's true worth is measured by what he pursues."

"He who has made a fair compact with poverty is rich."

"The gate to good deeds is patience."

"External things are not the problem. The problem is your judgments about them."

"See that you are not chained by your own thoughts."

"Death smiles at us all, but a soldier can only smile back."

"The body is not the man, and the man is not the body."

"True education is the art of making use of leisure."

"You alone can control your destiny. No one can do it for you."

"He who blames others has not yet begun his education."

"The purpose of philosophy is to teach how to live well."

"Wealth is measured not by what you have, but by your peace of mind."

"Humans have the power to choose their own direction."

"In the arena of human life, the honors and rewards fall to those who show their good qualities in action."

"It is the nature of every person to sin, but it is wisdom to stop."

"The virtue which you strive to acquire by labor and practice is the cure for all evil."

"Whenever you fail, do not let your failure teach you to fail."

"The most divine of all commandments is to know thyself."

"Nothing is shameful except the thing we agree to call so."

"Man's enemies are not external, but his own false judgments."