Quote by Epictetus

"The good is what improves your character; the evil is what diminishes it."

Epictetus
Stoic Philosopher Greek-Roman 50–135

More from Epictetus

"It is not things that disturb us, but our judgments about things."
"Freedom is not procured by a full enjoyment of what is desired, but by controlling the desire."
"No one can rob you of your free will."
"Wealth consists not in having great possessions, but in having few wants."

All quotes by Epictetus