Your firmness, your self-control in that which concerns eating and sleeping-if someone wished to describe these things, how would he find words to do so? Moreover, you have not permitted anyone, so to speak, to refer to your self-control and firmness using these terms, for your virtues are so much greater that we must search for other names for them. Because in referring to someone’s self-control and firmness, we speak of one who, being tormented by a passion, controls it. But you, you have nothing to control, for from the beginning you have possessed great ardor against the flesh…
—Saint John Chrysostom, Letters to Saint Olympia