One day M's brain will grow beyond the capacity of his skull to contain it, and his head will explode. No one will remember care who originated his work. His kids won't be there to feed him pudding or wipe the drool from his chin. Neither will LeatherPants.
He will one day want to share their life again when he is no longer the darling of academia. They won't give him the time of day, an adverb, or an adjective. He will wish he had not wasted his life writing so many of them.
You keep filling their life full of magic jelly beans, beautiful art, and the wonders of the sea. That is what they will remember and they will be so blessed to be able to pass that wonder on to their own kids.
