I learned little save that most of the deeds, good and bad both, incurring opprobrium or plaudits or reward either, within the scope of man's abilities, had already been performed and were to be learned about only from books.
At fifteen, my mind was bent on learning. At thirty, I stood firm. At forty, I had no doubts. At fifty, I knew the decrees of Heaven. At sixty, my ear was receptive to truth. At seventy, I could follow my heart's desires without sin.