11. When, therefore, we inquire why a crime was committed, we do not believe it, unless it appear that there might have been the wish to obtain some of those which we designated meaner things, or else a fear of losing them. For truly they are beautiful and comely, although in comparison with those higher and celestial goods they be abject and contemptible. A man has murdered another; what was his motive? He desired his wife or his estate; or would steal to support himself; or he was afraid of losing something of the kind by him; or, being injured, he was burning to be revenged. Would he commit murder without a motive, taking delight simply in the act of murder? Who would credit it? For as for that savage and brutal man, of whom it is declared that he was gratuitously wicked and cruel, there is yet a motive assigned. Lest through idleness, he says, hand or heart should grow inactive. And to what purpose? Why, even that, having once got possession of the city through that practice of wickedness, he might attain unto honours, empire, and wealth, and be exempt from the fear of the laws, and his difficult circumstances from the needs of his family, and the consciousness of his own wickedness. So it seems that even Catiline himself loved not his own villanies, but something else, which gave him the motive for committing them.
By St. Augustine