The advice ‘If you add even a small amount to a small amount and do this often’ is valuable for more than just the accumulation of money: it is universally effective, and nowhere more so than in the development of virtue, when to reason is added plenty of habituation, which is what produces results.

– from “On Being Aware of Moral Progress,” in the Penguin Classics edition of Plutarch’s Essays, translated by Robin Waterfield