Where does this quote come from?

"Do you remember what Darwin says about music? He claims that the power of producing and appreciating it existed among the human race long before the power of speech was arrived at. Perhaps that is why we are so subtly influenced by it. There are vague memories in our souls of those misty centuries when the world was in its childhood."
I bet none of you know the answer without looking it up!  This quote is from a book by a very well known author.