Quote by Epictetus

"The foundation of confidence is not in possessing external things, but in the quality of your will."

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