Descartes likewise argues after this manner: “Problem: to prove _a posteriori_ from the mere Notion within us the existence of God. The objective reality of a Notion demands a cause in which the same reality is not merely contained objectively” (as in the finite), “but formally” (freely, purely for itself, outside of us) “or _eminenter_” (as original). (Axiom δ.) “We now have a Notion of God, but His objective reality is neither formally nor _eminenter_ contained within us, and it can thus be only in God Himself.”[173] Consequently we see that with Descartes this Idea is an hypothesis. Now we should say we find this highest Idea in us. If we then ask whether this Idea exists, why, this is the Idea, that existence is asserted with it. To say that it is only a conception is to contradict the meaning of this conception. But here it is unsatisfactory to find that the conception is introduced thus: ‘We have this conception,’ and to find that it consequently appears like an hypothesis. In such a case it is not proved of this content in itself that it determines itself into this unity of thought and Being. In the form of God no other conception is thus here given than that contained in _Cogito, ergo sum_, wherein Being and thought are inseparably bound up—though now in the form of a conception which I possess within me. The whole content of this conception, the Almighty, All-wise, &c., are predicates which do not make their appearance until later; the content is simply the content of the Idea bound up with existence. Hence we see these determinations following one another in an empirical manner, and not philosophically proved—thus giving us an example of how in _a priori_ metaphysics generally hypotheses of conceptions are brought in, and these become objects of thought, just as happens in empiricism with investigations, observations, and experiences.