 Although Aristotle is careful to distinguish four different kinds of cause (or four different senses of ‘cause’), it is important to note that he claims that one and the same thing can be a cause in more than one sense. As he puts it, “form, mover, and telos often coincide” (198a25). And in De Anima he is perfectly explicit that the soul, which is the form or essence of a living thing, “is a cause in three of the ways we have distinguished” (415b10)—efficient, formal, and final.