After putting her to bed after their big conversation, what are August's parting words to Lily as she stands in the doorway? What do you think this means?

August's parting words to Lily are, "There is nothing perfect. There is only life." I think this means that life is not perfect, and that you have to learn to accept the eb and flow of how things go. Things will not always how you want them to be, but you can always try to make the best of it.