has the characteristic that, to the extent that it is actual it is not potential and to the extent that it is potential it is not actual; the hotter the water is, the less is it potentially hot, and the cooler it is, the less is it actually, the more potentially, hot. As with the first interpretation however, objects that: One implication of this interpretation is that whatever happens to be the case right now is an , as though something that is intrinsically unstable as the instantaneous position of an arrow in flight deserved to be described by the word that everywhere else Aristotle reserves for complex organized states that persist, that hold out against internal and external causes that try to destroy them. In a more recent paper on this subject, Kosman associates the view of Aquinas with those of his own critics, David Charles, Jonathan Beere, and Robert Heineman. 3. The interpretation of Kosman, Coope, Sachs and others , amongst other authors (such as Aryeh Kosman and Ursula Coope), proposes that the solution to problems interpreting Aristotle's definition must be found in the distinction Aristotle makes between two different types of potentiality, with only one of those corresponding to the "potentiality as such" appearing in the definition of motion. He writes: The man with sight, but with his eyes closed, differs from the blind man, although neither is seeing. The first man has the capacity to see, which the second man lacks. There are then potentialities as well as actualities in the world. But when the first man opens his eyes, has he lost the capacity to see? Obviously not; while he is seeing, his capacity to see is no longer merely a potentiality, but is a potentiality which has been put to work. The potentiality to see exists sometimes as active or at-work, and sometimes as inactive or latent. Coming to motion, Sachs gives the example of a man walking across the room and says that... "Once he has reached the other side of the room, his potentiality to be there has been actualized in Ross’ sense of the term". This is a type of . However, it is not a motion, and not relevant to the definition of motion. While a man is walking his potentiality to be on the other side of the room is actual just as a potentiality, or in other words