 Another subject about which Abner critiques Aristotelian science is the definition of place and the relation between place and body. In the thought of Aristotle, the definition of place is ‘the limit of the encompassing body’. In his opinion, place has an important role in movement. The definition of a natural movement is the movement of a body to its natural place in the world. Aristotle explains that both the natural place attracts the body and that the body moves on his own to its natural place.