Meditations by Marcus Aurelius Book 6 Page 34

Nay they that have not so much as a name remaining, what are they the worse for it? One thing there is, and that only, which is worth our while in this world, and ought by us much to be esteemed; and that is, according to truth and righteousness, meekly and lovingly to converse with false, and unrighteous men.

XLIII. When thou wilt comfort and cheer thyself, call to mind the several gifts and virtues of them, whom thou dost daily converse with; as for example, the industry of the one; the modesty of another; the liberality of a third; of another some other thing. For nothing can so much rejoice thee, as the resemblances and parallels of several virtues, visible and eminent in the dispositions of those who live with thee; especially when, all at once, as near as may be, they represent themselves unto thee.