But this is not the point which we are now considering. I have tried to show that the human mind was inevitably and irresistibly led to the distinction of being into me and not-me, spirit and matter, soul and body. Now, who does not see that the objection of the materialists proves the very thing it is intended to deny? Man distinguishing within himself a spiritual principle and a material principle,--what is this but Nature herself, proclaiming by turns her double essence, and bearing testimony to her own laws? And notice the inconsistency of materialism: it denies, and has to deny, that man is free; now, the less liberty man has, the more weight is to be attached to his words, and the greater their claim to be regarded as the expression of truth. When I hear this machine say to me, "I am soul and I am body," though such a revelation astonishes and confounds me, it is invested in my eyes with an authority incomparably greater than that of the materialist who, correcting conscience and Nature, undertakes to make them say, "I am matter and only matter, and intelligence is but the material faculty of knowing." What would become of this assertion, if, assuming in my turn the offensive, I should demonstrate that belief in the existence of bodies, or, in other words, in the reality of a purely corporeal nature, is untenable? Matter, they say, is impenetrable.--Impenetrable by what? I ask. Itself, undoubtedly; for they would not dare to say spirit, since they would therein admit what they wish to set aside. Whereupon I raise this double question: What do you know about it, and what does it signify?