Who said "Strength comes not from winning but from the struggle."?

This quote is attributed to Heraclitus.

Strength comes not from winning but from the struggle. - Heraclitus

"Strength comes not from winning but from the struggle."

Heraclitus Strength

Philosopher Ancient Greek 540–480

"Change is the only constant in life."

"No one steps in the same river twice."

"The path up and down are one and the same."

"Conflict is the father of all things."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."