Aurelius, Meditations §aur_07_x: As several members in one body united, so are reasonable creatures in a body ...

As several members in one body united, so are reasonable creatures in a body divided and dispersed, all made and prepared for one common operation. And this thou shalt apprehend the better, if thou shalt use thyself often to say to thyself, I am μέλος, or a member of the mass and body of reasonable substances. But if thou shalt say I am μέρος, or a part, thou dost not yet love men from thy heart. The joy that thou takest in the exercise of bounty, is not yet grounded upon a due ratiocination and right apprehension of the nature of things. Thou dost exercise it as yet upon this ground barely, as a thing convenient and fitting; not, as doing good to thyself, when thou dost good unto others.