... the Philosopher states (Ethic. vi, 5) "pleasure above all corrupts the estimate of prudence," and chiefly sexual pleasure which absorbs the mind, and draws it to sensible delight. Now the perfection of prudence and of every intellectual virtue consists in abstraction from sensible objects. Wherefore, since the aforesaid vices involve a defect of prudence and of the practical reason, ... — Summa Theologica, Part II-II (Secunda Secundae) • Thomas Aquinas
...
