1 Corinthians 14:40
Therefore also the prophets spare no such words, wishing to extirpate the licentiousness of the Jews, but do even more nakedly inveigh against them than we do now in the things we have spoken. For so a physician wishing to remove an ulcer does not consider how he may keep his hands clean, but how he may rid the patient of the ulcer; and he who would raise on high the lowly, first makes himself lowly; and he who seeks to slay the conspirator stains himself with blood as well as the other, and this makes him the more brilliant. Since if one were to see a soldier returning from the war, stained with gore and blood and brains, he will not loathe him nor turn from him on this account, but will even admire him the more. So then let us do, when we see any one returning, covered with blood after the slaughter of his evil desire, let us the more admire him and become partakers of his battle and victory, and say to those who indulge this wild love, “show us the pleasure you derive from lust; for the continent has that which comes of his victory, but thou none from any quarter. But if you should mention that which is connected with the criminal act, yet the other is more manifest and satisfactory. For you have from the enjoyment something brief and hardly apparent; but he from his conscience, has both a greater and an enduring and a sweeter joy. The company of a woman has surely no such power as self-command, to preserve the soul undisturbed and give it wings.”
Well then: the continent man, as I said, thus evidently makes his pleasure out to us: but in your case I see the dejection arising from defeat, but the pleasure, desiring to see, I find not. For what do you consider the moment of pleasure? That before the criminal action? Nay, it is not so, for it is a time of madness and delirium and frenzy: to grind the teeth and be beside one's self is not any pleasure: and if it were pleasure, it would not produce the same effects on you which they who are in pain endure. For they who strike with their fists and are stricken grind their teeth, and women in travail distracted with pains do the same. So that this is no pleasure, but frenzy rather, and confusion, and tumult. Shall we say then, the time after the action? Nay, neither is this. For neither could we say that a woman just delivered is in pleasure, but in release from certain pains. But this is by no means pleasure, but weakness rather and falling away: and there is a great difference between these two. What then is the time of pleasure, tell me? There is none. But if there be any, it is so brief as not even to be apparent. At least, having zealously sought in a great many ways to detect and apprehend it, we have not been able. But the time of the chaste man's pleasure is not such, rather it is wider and evident to all. Or rather, all his life is in pleasure, his conscience crowned, the waves laid, no disturbance from any quarter arising within him.
Since then this man's life is more in pleasure, while the life spent in love of pleasure is in dejection and disquiets; let us flee from licentiousness, let us keep hold on continence, that we may also obtain the good things to come, through the grace and mercy, etc., etc.
Source: Homilies on First Corinthians (New Advent)