 Immediately after quantity, quality comes. Following Aristotle (Categories, ch. 8, 8a 25), Wyclif defines quality as that in virtue of which substances are said to be qualified. The chief feature of Wyclif ’s treatment of quality is his twofold consideration of quality as an abstract form and as a concrete accident. In De ente praedicamentali he clearly states that quality is an absolute entity, with a well determined nature, and really distinct from substance (cf. ch. 7, p. 61). Furthermore, even if incidentally, against Burley, he notes that qualitative forms can admit a more or a less, since the propria passio of the category of quality is to be more or less intense (see ibidem, ch. 3, p. 28). 