For tell me, art thou pleased at hearing men blaspheme? Dost thou not rather shudder, and stop thine ears? Surely I think thou dost. Why so? Because thou blasphemest not thyself. Just so do thou act with respect to filthy talking also; and if thou wouldest show us clearly, that thou hast no pleasure in filthy speaking, endure not so much as to hear them. For when wilt thou be able to become good, bred up as thou art with such sounds in thine ears? When wilt thou venture to undergo such labors as chastity requires, now that thou art falling gradually away through this laughter, these songs, and filthy words? Yea, it is a great thing for a soul that keeps itself pure from all this, to be able to become grave and chaste; how much more for one that is nourished up in such hearings? Know ye not, that we are of the two more inclined to evil? While then we make it even an art, and a business, when shall we escape that furnace?