  An important element in Albert's Commentary is his derivation of the ten categories, which was further developed and defended by his most famous disciple, Thomas Aquinas.  Albert takes the modi praedicandi as his starting point in his division of the categories.  The main division is between per se predicaments and those not per se, i.e., between substance and accidents. The accidents are in turn divided into absolute accidents and those with some sort of relation to others. Absolute accidents are in turn divided on the basis of matter (which gives rise to quantity) or form (which brings about quality). Those accidents that have a relation to another are either caused by the substance or by something extrinsic to the substance. As to the accidents caused by the substance, they are either caused by the form (which accounts for action), the matter (which accounts for passion), or the entire composite (which accounts for relation). When the relation is based on the parts to the whole, one has position. As to the accidents caused by something extrinsic, if the cause is due to proximity, there results the category of place. If the cause is due to motion, the category of time results. Finally, the category of habit results if the cause produces some addition to the substance. (For more on Albert's derivation of the categories and how it influenced Aquinas, see Bos 1998). 