And are not the temperate exactly in the same case? They are temperate because they are intemperate—which may seem to be a contradiction, but is nevertheless the sort of thing which happens with this foolish temperance. For there are pleasures which they must have, and are afraid of losing; and therefore they abstain from one class of pleasures because they are overcome by another: and whereas intemperance is defined as "being under the domination of pleasure," they overcome only because they are overcome by pleasure.

Plato - Phaedo