"Custom is indeed in everything hard to resist."

"Custom is indeed in everything hard to resist. It possesses an enormous power of attracting and seducing the soul. In the cases where a man has got into a fixed state of sentiment, a certain imagination of the good is created in him by this habit; and nothing is so naturally vile but it may come to be thought both desirable and laudable, once it has got into the fashion." (De Vir. IX)