[margin: Grillandus, question 3, number 25]
Hostile harmful magic is so called when it brings harm, or is capable of bringing harm, to the goods of the soul, of the body, or of fortune, or when it was applied by a worker of harmful magic for the purpose of bringing such harm. The first case is such magic in act; the second, in power; the third, in intention. The things that intervene in these cases are, for the most part, cold, bitter, noxious, and contrary to human nature and to the welfare of human beings. For this reason Grillandus wishes them to be called evil poisons, contrary to the case in love-producing magic, in which he thinks that, for the most part, hot, sweet, pleasant things intervene, things pleasing to a human being and assisting natural heat and the power of lusting. For that reason, he thinks these are called by the law good or non-evil poisons, because they are not devised for the purpose of killing a human being.
Those who have read the preceding question accurately will readily believe that these statements are not always true. Therefore let us now discuss the chief kinds of hostile harmful magic; and because the discussion is long and varied, let us divide it into its sections.