Meditations 3.16

Body, soul, intelligence: to the body belong sensation, to the soul appetites, to the intelligence principles. To receive the impressions of forms by means of appearances belongs even to animals; to be pulled by the strings of desire belongs both to wild beasts and to men who have made themselves into women, and to a Phalaris and a Nero: and to have the intelligence that guides to the things which appear suitable belongs also to those who do not believe in the gods, and who betray their country, and do their impure deeds when they have shut the doors. If then everything else is common to all that I have mentioned, there remains that which is peculiar to the good man, to be pleased and content with what happens, and with the thread which is spun for him; and not to defile the divinity which is planted in his breast, nor disturb it by a crowd of images, but to preserve it tranquil, following it obediently as a god, neither saying anything contrary to the truth, nor doing anything contrary to justice. And if all men refuse to believe that he lives a simple, modest, and contented life, he is neither angry with any of them, nor does he deviate from the way which leads to the end of life, to which a man ought to come pure, tranquil, ready to depart, and without any compulsion perfectly reconciled to his lot.

Marcus Aurelius, Meditations 3.16, translated by George Long

Body, Soul, Intelligence: for the body sensations, for the soul desires, for the intelligence axioms. To receive impressions by way of the senses is not denied even to cattle; to be as puppets pulled by the strings of desire is common to wild beasts and to pathics and to a Phalaris and a Nero. Yet to have the intelligence a guide to what they deem their duty is an attribute of those also who do not believe in Gods and those who fail their country in its need and those who do their deeds behind closed doors.

If then all else is the common property of the classes mentioned, there is left as the characteristic of the good man to delight in and to welcome what befalls and what is spun for him by destiny; and not to sully the divine ‘genius' that is enthroned in his bosom, nor yet to perplex it with a multitude of impressions, but to maintain it to the end in a gracious serenity, in orderly obedience to God, uttering no word that is not true and doing no deed that is not just. But if all men disbelieve in his living a simple and modest and cheerful life, he is not wroth with any of them, nor swerves from the path which leads to his life's goal, whither he must go pure, peaceful, ready for release, needing no force to bring him into accord with his lot.

Marcus Aurelius, Meditations 3.16, translated by C. R. Haines