Pain is either an evil to the body- then let the body say what it thinks of it- or to the soul; but it is in the power of the soul to maintain its own serenity and tranquility, and not to think that pain is an evil.
AI put this 1862 translation into today's English. Only the wording changed: each rewrite was checked against the original to keep its exact meaning.
Original translation
“No longer talk at all about the kind of man that a good man ought to be, but be such.”
Translated by George Long, 1862
“Time is like a river made up of the events which happen, and a violent stream; for as soon as a thing has been seen, it is carried away, and another comes in its place, and this will be carried away too.”
― Marcus AureliusMeditations (Book VIII, Section 28)