Marilynne Robinson said this quote

People talk about how wonderful the world must seem to children, and that's true enough. But children think they will grow into it and understand it, and I know very well that I will not, and would not if I had a dozen lives. That's clearer to me every day. Each morning I am like Adam waking up in Eden, amazed at the cleverness of my hands and at the brilliance pouring into my mind through my eyes.