"The method by which they profess their sacrilege through an open pact of fidelity to devils varies according to the several practices to which different witches are addicted. And to understand this it first must be noted that there are, as was shown in the First Part of this treatise, three kinds of witches; namely, those who injure but cannot cure; those who cure but, through some strange pact with the devil, cannot injure; and those who both injure and cure. And among those who injure, one class in particular stands out, which can perform every sort of witchcraft and spell, comprehending all that all the others individually can do. Wherefore, if we describe the method of profession in their case, it will suffice also for all the other kinds. And this class is made up of those who, against every instinct of human or animal nature, are in the habit of eating and devouring the children of their own species."
- Malleus Maleficarum, Part 2, Question 1, Chapter 2