Marcus Aurelius
Meditations 11.2
Thou wilt set little value on pleasing song and dancing and the pancratium, if thou wilt distribute the melody of the voice into its several sounds, and ask thyself as to each, if thou art mastered by this; for thou wilt be prevented by shame from confessing it: and in the matter of dancing, if at each movement and attitude thou wilt do the same; and the like also in the matter of the pancratium. In all things, then, except virtue and the acts of virtue, remember to apply thyself to their several parts, and by this division to come to value them little: and apply this rule also to thy whole life.
Marcus Aurelius, Meditations 11.2, translated by George Long
Thou wilt think but meanly of charming songs and dances and the pancratium, if thou analyze the melodious utterance into its several notes and in the case of each ask thyself: Has this the mastery over me? For thou wilt recoil from such a confession. So too with the dance, if thou do the like for each movement and posture. The same holds good of the pancratium. In fine, virtue and its sphere of action excepted, remember to turn to the component parts, and by analyzing them come to despise them. Bring the same practice to bear on the whole of life also.
Marcus Aurelius, Meditations 11.2, translated by C. R. Haines