Look up anything you can find about Diogenes. He's not exactly a stoic but the stoics definitely respected him. Diogenes didn't write anything down but he lived by example his philosophy and he adhered to it without fail. Many of his teachings aligned with stoicism, but they diverge because society saw Diogenes on the surface and without context it was abrasive and off putting. He seems more comfortable than the richest person on earth and he has nothing. He saw a child drinking water from his cupped hands at the trough and promptly discarded his cup. He slept amongst stray dogs because he found no virtue in the structure of society and the short sighted nature of the people in charge so he provided them with an example of his enlightened philosophy while eating hand outs, assaulting the rich, and masturbating in public. Alexander the Great said if he could be anyone in the world he would be Diogenes.