it was on the moral side , and in my own person , that i learned to recognise the thorough and primitive duality of man ; i saw that , of the two natures that contended in the field of my consciousness , even if i could rightly be said to be either , it was only because i was radically both ; and from an early date , even before the course of my scientific discoveries had begun to suggest the most naked possibility of such a miracle , i had learned to dwell with pleasure , as a beloved daydream , on the thought of the separation of these elements .