Many years later he looked through one of my books and said, "How did you learn all this, Isaac?" "From you, Pappa", I said. "From me? I don't know any of this". "You didn't have to, Pappa", I said. "You valued learning and you taught me to value it. Once I learned to value it, the rest came without trouble." - Isaac Asimov (Isaak Yudovich Ozimov). It's been a good life.