Chrysippus (or Chrysippos) of Soli was a Greek Stoic philosopher.
Although Chrysippus believed in fate, divination, and gods, he believed reason, sympathy, and knowledge were the tools human beings should use when addressing ethical problems.

How strange is the lot of us mortals! Each of us is here for a brief sojourn; for what purpose […]
I hold that a writer should not in any circumstances or for any cause surrender his duty to criticise and […]
We hold that only by making happiness for those around us, and by endeavoring, individually, to make the world a […]
Our interest, it seems to me, lies with so much of the past as may serve to guide our actions […]