Anaximander was fascinated by the opposed forces we see in nature around us. These countervailing forces, which are things like mist and flame, with opposing characteristics, are what pay retribution to one another. The infinite is indefinite—it has no characteristics that could be opposed to one another. But it is somehow the source of what does enter into opposition. And, because it is infinite in the sense of being inexhaustible, the process of mutual opposition will never cease.

