IX. Diversity repels; likeness attracts. That which seeks something outside itself is demonstrably of the same nature as that which it seeks. These preliminaries are enough then for our purpose. The intelligent interpreter of the discussion will supply the arguments appropriate to each point. Now the problem is this. Things which are, are good. For all the learned are agreed that every existing thing tends to good and everything tends to its like. Therefore things which tend to good are good. We must, however, inquire how they are good--by participation or by substance. If by participation, they are in no wise good in themselves; for a thing which is white by participation in whiteness is not white in itself by virtue of absolute Being. So with all other qualities. If then they are good by participation, they are not good in themselves; therefore they do not tend to good. But we have agreed that they do. Therefore they are good not by participation but by substance. But those things whose substance is good are substantially good. But they owe their actual Being to absolute Being. Their absolute Being therefore is good; therefore the absolute Being of all things is good. But if their Being is good, things which exist are good through the fact that they exist and their absolute Being is the same as that of the Good. Therefore they are substantial goods, since they do not merely participate in goodness. But if their absolute Being is good, there is no doubt but that, since they are substantial goods, they are like the First Good and therefore they will have to be that Good. For nothing is like It save Itself. Hence all things that are, are God--an impious assertion. Wherefore things are not substantial goods, and so the essence of the Good does not reside in them. Therefore they are not good through the fact that they exist. But neither do they receive good by participation, for they would in no wise tend to good. Therefore they are in no wise good.[38]