Who said "Gold is tried in fire, so must man be tried in adversity."?

This quote is attributed to Pythagoras.

Gold is tried in fire, so must man be tried in adversity. - Pythagoras

"Gold is tried in fire, so must man be tried in adversity."

Pythagoras Perseverance

Mathematician/Philosopher Ancient Greek 570–495

"Choose silence of all virtues, for it is the ornament of the wise."

"A friend is a second self."

"Do not allow the deep to possess your mind, nor the heights to disturb your equanimity."

"Educate the children and it won't be necessary to punish the men."

"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."