If we start from the knowledge of the particular, and not from that of the Idea, there is something astonishing, and sometimes even terrible, in the absolute uniformity of the laws of nature. It might astonish us that nature never once forgets her laws; that if, for example, it has once been according to a law of nature that where certain materials are brought together under given conditions, a chemical combination will take place, or gas will be evolved, or they will go on fire; if these conditions are fulfilled, whether by our interposition or entirely by chance (and in this case the accuracy is the more astonishing because unexpected), to-day just as well as a thousand years ago, the determined phenomenon will take place at once and without delay. We are most vividly impressed with the marvellousness of this fact in the case of rare phenomena, which only occur under very complex circumstances, but which we are previously informed will take place if these conditions are fulfilled. For example, when we are told that if certain metals, when arranged alternately in fluid with which an acid has been mixed, are brought into contact, silver leaf brought between the extremities of this combination will suddenly be consumed in a green flame; or that under certain conditions the hard diamond turns into carbonic acid. It is the ghostly omnipresence of natural forces that astonishes us in such cases, and we remark here what in the case of phenomena which happen daily no longer strikes us, how the connection between cause and effect is really as mysterious as that which is imagined between a magic formula and a spirit that must appear when invoked by it. On the other hand, if we have attained to the philosophical knowledge that a force of nature is a definite grade of the objectification of will, that is to say, a definite grade of that which we recognise as our own inmost nature, and that this will, in itself, and distinguished from its phenomena and their forms, lies outside time and space, and that, therefore, the multiplicity, which is conditioned by time and space, does not belong to it, nor directly to the grade of its objectification, _i.e._, the Idea, but only to the phenomena of the Idea; and if we remember that the law of causality has significance only in relation to time and space, inasmuch as it determines the position of the multitude of phenomena of the different Ideas in which the will reveals itself, governing the order in which they must appear; if, I say, in this knowledge the inner meaning of the great doctrine of Kant has been fully grasped, the doctrine that time, space, and causality do not belong to the thing-in-itself, but merely to the phenomenon, that they are only the forms of our knowledge, not qualities of things in themselves; then we shall understand that this astonishment at the conformity to law and accurate operation of a force of nature, this astonishment at the complete