ABOUT MATERIAL RESPONSIBILITY IN ARISTOTLE It may seem that Aristotle considers the problem of responsibility from perspective of formal responsibility. It should, however, to bear in mind that practical philosophy of Aristotle has teleological dimension. The human being has the task to do which consist of fulfill the proper function of the man. Thus, he is responsible for entrusted role. In this sense, material responsibility is also present in ethical considerations of Aristotle. The article is devoted to demonstrating that talking about material responsibility in Aristotle is not unfounded.