The above discussion has proceeded on the supposition of Existence being infinite; but practically the same result would follow on the counter-supposition of Existence being finite. For although in this case, as we have seen, Non-entity would still be included within the range of possibility, it would still be no more conceivable as such than is Entity; and hence the question, Why is there not Nothing? would still be irrational, seeing that, even if the possibility which the question supposes were realised, it would in no wise tend to explain the mystery of Something. And even if it could, the final mystery would not be thus excluded; it would merely be transferred from the mystery of Existence to the mystery of Non-existence. Thus under every conceivable supposition we arrive at the same termination--viz., that in the last resort there must be a final mystery, which, as forming the basis of all possible explanations, cannot itself receive any explanation, and which therefore is really not, in any proper sense of the term, a mystery at all. It is merely a fact which itself requires no explanation, because it is a fact than which none can be more ultimate. So that even if we suppose this ultimate fact to be an Intelligent Being, it is clearly impossible that he should be able to _explain_ his own existence, since the possibility of any such explanation would imply that his existence could not be ultimate. In the sense, therefore, of not admitting of any explanation, his existence would require to be a mystery to himself, rendering it impossible for him to state anything further with regard to it than this--"I am that I am."