16th Roman Emperor from 161 to 180 and Stoic philosopher
Marcus Aurelius Antoninus (26 April 121 – 17 March 180) was Roman emperor from 161 to 180 and a Stoic philosopher. He was the last of the rulers known as the Five Good Emperors (a term coined some 13 centuries later by Niccolò Machiavelli), and the last emperor of the Pax Romana (27 BC to 180), an age of relative peace and stability for the Roman Empire. He served as Roman consul in 140, 145, and 161.
Bio from: Wikiquote (CC BY-SA 4.0) · Portrait adapted from: Wikimedia Commons, Marie-Lan Nguyen (2011) (CC BY)
From Wikidata (CC0)
τί λοιπὸν ἢ ἀπολαύειν τοῦ ζῆν συνάπτοντα ἄλλο ἐπ ἄλλῳ ἀγαθόν, ὥστε μηδὲ τὸ βραχύτατον διάστημα ἀπολείπειν;
[Before making a decision] The first thing to do – don't get worked up. For everything happens according to the nature of all things, and in a short time you'll be nobody and nowhere even as the great emperors Hadrian and Augustus are now. The next thing to do – consider carefully the task at hand for what it is, while remembering that your purpose is to be a good human being. Get straight to doing what nature requires of you, and speak as you see most just and fitting – with kindness, modesty, and sincerity.
Acquire the contemplative way of seeing how all things change into one another, and constantly attend to it, and exercise thyself about this part [of philosophy]. For nothing is so much adapted to produce magnanimity. ...But as to what any man shall say or think about him, or do against him, he never even thinks of it, being himself contented with these two things: with acting justly in what he now does, and being satisfied with what is now assigned to him; and he lays aside all distracting and busy pursuits, and desires nothing else than to accomplish the straight course through the law, and by accomplishing the straight course to follow God.