Abstract
This article explores the role of pain in Aristotle's ethics. After elucidating the relation between pleasure and activity, the article focuses on the relation between pain and activity.
Even though some pains can be understood as kineseis moving the animal out of his natural state, in the ethical context, however, pain understood as hindering the activity plays more important role. The article shows what this notion of pain as a hindrance means for animal life and how it relates to some other important areas of Aristotle's philosophy, such as sense perception and psychology.