“…in matter of fact, the sinful spirit repents and protests it will never sin again, and for a while is protected by disgust and abhorrence from the malice of its foe. But that foe knows too well that such seasons of repentance are wont to have their end: he patiently waits, till nature faints with the effort of resistance, and lies passive and hopeless under the next access of temptation. What we need then is some expedient or instrument, which at least will obstruct and stave off the approach of our spiritual enemy, and which is sufficiently congenial and level with our nature to maintain as firm a hold upon us as the inducements of sensual gratification. It will be our wisdom to employ nature against herself.”
— JOHN HENRY NEWMAN, The Idea of a University