Marcus Aurelius
Meditations 5.36
Do not be carried along inconsiderately by the appearance of things, but give help [to all] according to thy ability and their fitness; and if they should have sustained loss in matters which are indifferent, do not imagine this to be a damage; for it is a bad habit. But as the old man, when he went away, asked back his foster-child's top, remembering that it was a top, so do thou in this case also.
When thou art calling out on the Rostra, hast thou forgotten, man, what these things are?—Yes; but they are objects of great concern to these people—wilt thou too then be made a fool for these things? I was once a fortunate man, but I lost it, I know not how.—But fortunate means that a man has assigned to himself a good fortune: and a good fortune is good disposition of the soul, good emotions, good actions.
Marcus Aurelius, Meditations 5.36, translated by George Long
Be not carried incontinently away by sense-impressions, but rally to the fight as thou canst and as is due. If there be failure in things indifferent, think not there is any great harm done; for that is an evil habit. But as the greybeard (in the play) taking his leave reclaimed his foster-child's top, not forgetting that it was but a top, so do thou here also. Since indeed thou art found haranguing on the hustings, O Man, hast thou forgotten what this really means? Aye, but people will have it. Must thou too be a fool in consequence?
Time was that wheresoever forsaken I was a man well-portioned; but that man well-portioned is he that hath given himself a good portion; and good portions are good phases of the soul, good impulses, good actions.
Marcus Aurelius, Meditations 5.36, translated by C. R. Haines