Well, if this is done, we have the postulation of a Being which is self-existing, infinite, and eternal-relatively, at all events, to our powers of conception.
"A Candid Examination of Theism"
George John Romanes
So that, if we define the process of explanation as the process of referring observed phenomena to their adequate causes, we may say that Religion, by the aid of a general theory of things in the postulation of an intelligent First Cause, furnishes to her own satisfaction an ultimate explanation of the universe as a whole, and therefore is not concerned with any of those proximate explanations or discovery of second causes, which form the exclusive subject-matter of Science.
"Thoughts on Religion"
George John Romanes
Or, in other words, he shows that the postulation of phenomena necessitates the further postulation of noumena of which phenomena are the manifestations.
"A Candid Examination of Theism"
George John Romanes