As for the life of money-making, it is one of constraint, and wealth manifestly is not the good we are seeking, because it is for use, that is, for the sake of something further: and hence one would rather conceive the forementioned ends to be the right ones, for men rest content with them for their own sakes. Yet, clearly, they are not the objects of our search either, though many words have been wasted on them.[10] So much then for these. Again, the notion of one Universal Good (the same, that is, in all things), it is better perhaps we should examine, and discuss the meaning of it, though such an enquiry is unpleasant, because they are friends of ours who have introduced these εἴδη.[11] Still perhaps it may appear better, nay to be our duty where the safety of the truth is concerned, to upset if need be even our own theories, specially as we are lovers of wisdom: for since both are dear to us, we are bound to prefer the truth. Now they who invented this doctrine of εἴδη, did not apply it to those things in which they spoke of priority and posteriority, and so they never made any ἰδέα of numbers; but good is predicated in the categories of Substance, Quality, and Relation; now that which exists of itself, i.e. Substance, is prior in the nature of things to that which is relative, because this latter is an off-shoot, as it were, and result of that which is; on their own principle then there cannot be a common ἰδέα in the case of these. In the next place, since good is predicated in as many ways as there are modes of existence [for it is predicated in the category of Substance, as God, Intellect—and in that of Quality, as The Virtues—and in that of Quantity, as The Mean—and in that of Relation, as The Useful—and in that of Time, as Opportunity—and in that of Place, as Abode; and other such like things], it manifestly cannot be something common and universal and one in all: else it would not have been predicated in all the categories, but in one only.