Who said "There is no failure except in no longer trying."?

This quote is attributed to Epictetus.

There is no failure except in no longer trying. - Epictetus

"There is no failure except in no longer trying."

Epictetus Perseverance

Stoic Philosopher Greek-Roman 50–135

"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."

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."