Meditations 7.67

Nature has not so mingled [the intelligence] with the composition of the body, as not to have allowed thee the power of circumscribing thyself and of bringing under subjection to thyself all that is thy own; for it is very possible to be a divine man and to be recognized as such by no one. Always bear this in mind; and another thing too, that very little indeed is necessary for living a happy life. And because thou hast despaired of becoming a dialectician and skilled in the knowledge of nature, do not for this reason renounce the hope of being both free and modest, and social and obedient to God.

Marcus Aurelius, Meditations 7.67, translated by George Long

Nature did not make so intimate a blend in the compound as not to allow a man to isolate himself and keep his own things in his own power. For it is very possible to be a godlike man and yet not to be recognized by any. Never forget this nor that the happy life depends on the fewest possible things; nor because thou hast been baulked in the hope of becoming skilled in dialectics and physics, needest thou despair of being free and modest and unselfish and obedient to God.

Marcus Aurelius, Meditations 7.67, translated by C. R. Haines