Let us astound them by our way of life. For this is the main battle, the unanswerable argument, the argument from actions. For though we give ten thousand precepts of philosophy in words, if we do not exhibit a better life than theirs, the gain is nothing. For it is not what is said that draws their attention, but their inquiry is what we do. Let us win them therefore by our life.
~John Chrysostom, Homily on 1 Corinthians, 4th century CE