Meditations 8.34

If thou didst ever see a hand cut off, or a foot, or a head, lying anywhere apart from the rest of the body, such does a man make himself, as far as he can, who is not content with what happens, and separates himself from others, or does anything unsocial. Suppose that thou hast detached thyself from the natural unity,—for thou wast made by nature a part, but now thou hast cut thyself off,—yet here there is this beautiful provision, that it is in thy power again to unite thyself. God has allowed this to no other part, after it has been separated and cut asunder, to come together again. But consider the kindness by which he has distinguished man, for he has put it in his power not to be separated at all from the universal; and when he has been separated, he has allowed him to return and to be united and to resume his place as a part.

Marcus Aurelius, Meditations 8.34, translated by George Long

Thou hast seen a hand cut off or a foot, or a head severed from the trunk, and lying at some distance from the rest of the body. Just so does the man treat himself, as far as he may, who wills not what befalls and severs himself from mankind or acts unsocially. Say thou hast been torn away in some sort from the unity of Nature; for by the law of thy birth thou wast a part; but now thou hast cut thyself off. Yet here comes in that exquisite provision, that thou canst return again to thy unity. To no other part has God granted this, to come together again, when once separated and cleft asunder. Aye, behold His goodness, wherewith He hath glorified man! For He hath let it rest with a man that he be never rent away from the Whole, and if he do rend himself away, to return again and grow on to the rest and take up his position again as part.

Marcus Aurelius, Meditations 8.34, translated by C. R. Haines