Further, since things are said to be good in as many ways as they are said to be (for things are called good both in the category of substance, as God and reason, and in quality, eg the virtues, and in quantity, eg that which is moderate, and in relation, eg the useful, and in time, eg the right opportunity, and in place, eg the right locality and the like), clearly the good cannot be something universally present in all cases and single; for then it would not have been predicated in all the categories but in one only.