Marcus Aurelius
Meditations 8.22
Attend to the matter which is before thee, whether it is an opinion or an act or a word.
Thou sufferest this justly: for thou choosest rather to become good to-morrow than to be good to-day.
Marcus Aurelius, Meditations 8.22, translated by George Long
Fix thy attention on the subject-matter or the act or the principle or the thing signified. Rightly served! Thou wouldst rather become a good man to-morrow than be one to-day.
Marcus Aurelius, Meditations 8.22, translated by C. R. Haines