To prevent this, then, we want to apply to our own lives that rule of all temperance, never to let the mind dwell on anything wherein pleasure’s bait is hid; but above all to be specially watchful against the pleasure of taste. For that seems in a way the most deeply rooted, and to be the mother as it were of all forbidden enjoyment. The pleasures of eating and drinking, leading to boundless excess, inflict upon the body the doom of the most dreadful sufferings; for over-indulgence is the parent of most of the painful diseases. To secure for the body a continuous tranquility, unstirred by the pains of surfeit, we must make up our minds to a more sparing regimen, and constitute the need of it on each occasion not the pleasure of it, as the measure and limit of our indulgence. If the sweetness will nevertheless mingle itself with the satisfaction of the need (for hunger knows how to sweeten everything, and by the vehemence of appetite she gives the zest of pleasure to every discoverable supply of the need), we must not because of the resulting enjoyment reject the satisfaction, nor yet make this latter our leading aim. In everything we must select the expedient quantity, and leave untouched what merely feasts the senses.
—Saint Gregory of Nyssa, On Virginity