Temperance

The virtue of moderation, controlling the sense of appetite with respect to food and drink (abstinence) or intoxicating drink (temperance), as an exercise of self restraint, is considered a training in [will power]

and in encouraging the ability to act in accordance with [reason]

. Thomas Aquinas defined temperance as the order of reason with regard to the passions when these draw us to something irrational.

Also referred to as self control, temperance is one of the four cardinal or principal virtues recognized by Plato in the Republic and featuring prominently in mediaeval Christianity.