 As for that whose quiddity is divisible, three [kinds of] things are said to be its quiddity: (i) its unarticulated whole, (ii) [its whole] articulated by the parts by which its constitution [is], (iii) each of the parts of the whole, each of them through [?] the whole in turn. Its whole is what its name signifies, and what is articulated by its parts is what its definition signifies, and each of its parts is genus and differentia, each in turn, or matter and form, each in turn. (I,88 p.116,8–13)