But suppose the substratum of the universe to consist of a countless number of inconceivably small indivisible particles of matter, and do we not even on this hypothesis reach by a single step the truth on which theism rests, and on which only theism can be based? "None of the processes of nature," says one of the most eminent of our physical philosophers, "since the time when nature began, have produced the slightest difference in the properties of any molecule. We are therefore unable to ascribe either the existence of the molecules or the identity of their properties to the operation of any of the causes which we call natural. On the other hand, the exact quality of each molecule to all others of the same kind gives it, as Sir John Herschel has well said, the essential character of a manufactured article, and precludes the idea of its being eternal and self-existent. Thus we have been led, along a strictly scientific path, very near to the point at which science must stop. Not that science is debarred from studying the external mechanism of a molecule which she cannot take to pieces, any more than from investigating an organism which she cannot put together. But, in tracing back the history of matter, science is arrested when she assures herself, on the one hand, that the molecule has been made, and on the other that it has not been made by any of the processes we call natural."[16] I believe that no reply to these words of Professor Clark Maxwell is possible from any one who holds the ordinary view of scientific men as to the ultimate constitution of matter. They must suppose every atom, every molecule, to be of such a nature, to be so related to others, and to the universe generally, that things may be such as we see them to be; but this their fitness to be built up into the structure of the universe is a proof that they have been made fit, and since natural forces could not have acted on them while not yet existent, a supernatural power must have created them, and created them with a view to their manifold uses. Every atom, every molecule, must even in what is ultimate in it bear the impress of a Supernatural Power and Wisdom; must, from the very nature of the case, reflect the glory of God and proclaim its dependence upon Him. [16] President's Address in Transactions of the British Association for the Advancement of Science, 1870.