Who said "To change the world, one must first change oneself."?

This quote is attributed to Pythagoras.

To change the world, one must first change oneself. - Pythagoras

"To change the world, one must first change oneself."

Pythagoras Change

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."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."