So I write melodies - thirty, forty, fifty - then I cast them off until I have just two or three. If only one is needed, I go see the director and ask him to decide.
You may observe in all my lessons, that I tell you how the legs go, and those who are unacquainted with that, are entirely ignorant and work in the dark.
And, that's what I truly believe that we're doing when we're advancing scientific knowledge is we're someday making the world better. Not only for our children, but for all people after that.