Do not draw attention to your good acts

 As a horse when he has run, a dog when he has tracked the game, a bee when it has made the honey, so a man when he has done a good act, does not call out for others to come and see, but he goes on to another act, as a vine goes on to produce again the grapes in season.  Marcus Aurelius.  Meditations.  Book 5.

Image: Roman mosaic of a charioteer driving a quadriga, from Roman Spain, 3rd century CE, courtesy of Archaeology Magazine.