“It is this causal series which moves heaven and the stars, attempers the elements to mutual accord, and again in turn transforms them into new combinations; this which renews the series of all things that are born and die through like successions of germ and birth; it is its operation which binds the destinies of men by an indissoluble nexus of causality, and, since it issues in the beginning from unalterable providence, these destinies also must of necessity be immutable. Accordingly, the world is ruled for the best if this unity abiding in the Divine mind puts forth an inflexible order of causes. And this order, by its intrinsic immutability, restricts things mutable which otherwise would ebb and flow at random. And so it happens that, although to you, who are not altogether capable of understanding this order, all things seem confused and disordered, nevertheless there is everywhere an appointed limit which guides all things to good. Verily, nothing can be done for the sake of evil even by the wicked themselves; for, as we abundantly proved, they seek good, but are drawn out of the way by perverse error; far less can this order which sets out from the supreme centre of good turn aside anywhither from the way in which it began.