Marcus Aurelius
Meditations 1.5
From my governor, to be neither of the green nor of the blue party at the games in the Circus, nor a partisan either of the Parmularius or the Scutarius at the gladiators' fights; from him too I learned endurance of labor, and to want little, and to work with my own hands, and not to meddle with other people's affairs, and not to be ready to listen to slander.
Marcus Aurelius, Meditations 1.5, translated by George Long
From my Tutor, not to side with the Green Jacket or the Blue at the races, or to back the Light-Shield Champion or the Heavy-Shield in the lists; not to shirk toil, and to have few wants, and to do my own work, and mind my own concerns; and to turn a deaf ear to slander.
Marcus Aurelius, Meditations 1.5, translated by C. R. Haines