Sec. 31. The argument, then, which was elaborated in Sec. 29, and which has so long and so generally received the popular sanction in the common-sense epitome, that in the last record there must be mind in external nature, since "that which it requires thought and reason to understand must itself be thought and reason,"--this argument, I say, must now for ever be abandoned by reasonable men. No doubt it would be easy to point to several speculative thinkers who have previously combated this argument,[21] and from this fact some readers will perhaps be inclined to judge, from a false analogy, that as the argument in question has withstood previous assaults, it need not necessarily succumb to the present one. Be it observed, however, that the present assault differs from all previous assaults, just as demonstration differs from speculation. What has hitherto been but mere guess and unwarrantable assertion has now become a matter of the greatest certainty. That the argument from General Laws is a futile argument, is no longer a matter of unverifiable opinion: it is as sure as is the most fundamental axiom of science. That the argument will long remain in illogical minds, I doubt not; but that it is from henceforth quite inadmissible in accurate thinking, there can be no question. For the sake, however, of impressing this fact still more strongly upon such readers as have been accustomed to rely upon this argument, and so find it difficult thus abruptly to reverse the whole current of their thoughts,--for the sake of such, I shall here add a few remarks with the view of facilitating the conception of an universal Order existing independently of Mind.