Joseph Butler, Whole Works of Joseph Butler — Sermons 2 and 3 (1850)
“ How many instances are there in which men feel, and own, and cry aloud under the chains of vice with which they are enthralled, and which yet they will not shake off! How many instances, in which persons manifestly go through more pain and self-denial to gratify a vicious passion, than would have been necessary to the conquest of it! To this is to be added, that when virtue is become habitual, when the temper of it is acquired, what was before confinement ceases to be so, by becoming choice and delight. ”
