Who said "The greatest things require the greatest effort."?

This quote is attributed to Heraclitus.

The greatest things require the greatest effort. - Heraclitus

"The greatest things require the greatest effort."

Heraclitus Perseverance

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."

"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."