If the combat with pleasure seems wearisome, nevertheless let all take heart. Habit will not fail to produce, even in the seemingly most fretful, a feeling of pleasure through the very effort of their perseverance; and that pleasure will be of the noblest and purest kind; which the intelligent may well be enamoured of, rather than allow themselves, with aims narrowed by the lowness of their objects, to be estranged from the true greatness which goes beyond all thought.
St. Gregory of Nyssa
On Virginity, Chap. IX