Sec. 32. Interpreting the mazy nexus of phenomena only by the facts which science has revealed, and what conclusion are we driven to accept? Clearly, looking to what has been said in the last two sections, that from the time when the process of evolution first began,--from the time before the condensation of the nebula had showed any signs of commencing,--every subsequent change or event of evolution was _necessarily bound_ to ensue; else force and matter have not been persistent. How then, it will be asked, did the vast nexus of natural laws which is now observable ever begin or continue to be? In this way. When the first womb of things was pregnant with all the future, there would probably have been existent at any rate not more than one of the formulae which we now call natural laws. This one law, of course, would have been the law of gravitation. Here we may take our stand. It does not signify whether there ever was a time when gravitation was not,--_i.e._, if ever there was a time when matter, _as we now know it_, was not in existence;--for if there ever was such a time, there is no reason to doubt, but every reason to conclude, that the evolution of matter, as we now know it, was accomplished in accordance with law. Similarly, we are not concerned with the question as to how the law of gravitation came to be associated with matter; for it is overwhelmingly probable, from the extent of the analogy, that if our knowledge concerning molecular physics were sufficiently great, the existence of the law in question would be found to follow as a necessary deduction from the primary qualities of matter and force, just as we can now see that, when present, its peculiar quantitative action necessarily follows from the primary qualities of space.