The religious doctrine taught me from childhood disappeared in me as in others, but with this difference, that as from the age of fifteen I began to read philosophical works, my rejection of the doctrine became a conscious one at a very early age. From the time I was sixteen I ceased to say my prayers and ceased to go to church or to fast of my own volition. I did not believe what had been taught me in childhood but I believed in something. What it was I believed in I could not at all have said. I believed in a God, or rather I did not deny God—but I could not have said what sort of God. Neither did I deny Christ and his teaching, but what his teaching consisted in I again could not have said.
Looking back on that time, I now see clearly that my faith—my only real faith—that which apart from my animal instincts gave impulse to my life—was a belief in perfecting myself. But in what this perfecting consisted and what its object was, I could not have said. I tried to perfect myself mentally—I studied everything I could, anything life threw in my way; I tried to perfect my will, I drew up rules I tried to follow; I perfected myself physically, cultivating my strength and agility by all sorts of exercises, and accustoming myself to endurance and patience by all kinds of privations. And all this I considered to be the pursuit of perfection. The beginning of it all was, of course, moral perfection; but that was soon replaced by perfection in general: by the desire to be better not in my own eyes or those of God but in the eyes of other people. And very soon this effort again changed into a desire to be stronger than others: to be more famous, more important and richer than others.