new life in nature with change of season) and what we may call unusual or special providence (_e.g._ the bringing of timber by ocean currents to Arctic shores where it does not grow, and where without this aid the inhabitants could not live). Here, although we can quite well explain the physico-mechanical cause of these phenomena—in this case, for example, the banks of the rivers in temperate countries are over-grown with trees, some of which fall into the water and are carried along, probably by the Gulf Stream—we must not overlook the teleological cause which points to the providential care of a ruling wisdom above nature. But the concept, commonly used in the schools of philosophy, of a co-operation on the part of the Deity or a concurrence (_concursus_) in the operations going on in the world of sense, must be dropped. For it is, firstly, self-contradictory to couple the like and the unlike together (_gryphes jungere equis_) and to let Him who is Himself the entire cause of the changes in the universe make good any shortcomings in His own predetermining providence (which to require this must be defective) during the course of the world; for example, to say that the physician has restored the sick with the help of God—that is to say that He has been present as a support. For _causa solitaria non juvat_. God created the physician as well as his means of healing; and we must ascribe the result wholly to Him, if we will go back to the supreme First Cause which, theoretically, is beyond our comprehension. Or we can ascribe the result entirely to the physician, in so far as we follow up this event, as explicable in the chain of physical causes, according to the order of nature. Secondly, moreover, such a way of looking at this question destroys all the fixed principles by which we judge an effect. But, from the ethico-practical point of view which looks entirely to the transcendental side of things, the idea of a divine concurrence is quite proper and even necessary: for example, in the faith that God will make good the imperfection of our human justice, if only our feelings and intentions are sincere; and that He will do this by means beyond our comprehension, and therefore we should not slacken our efforts after what is good. Whence it follows, as a matter of course, that no one must attempt to explain a good action as a mere event in time by this _concursus_; for that would be to pretend a theoretical knowledge of the supersensible and hence be absurd. [136] _Id est_, which we cannot dissever from the idea of a creative skill capable of producing them. [Tr.] [137] See preface, p. ix. above.