Nietzsche is dead?
As dead as a door-nail.
Mind! I don't mean to say that I know, of my own knowledge, what there is particularly dead about a door-nail. I might be inclined, myself, to regard a coffin-nail as the deadest piece of ironmongery in the trade. But the wisdom of our ancestors is in the simile; and my unhallowed hands shall not disturb it, or the Country's done for. You will therefore permit me to repeat, emphatically, that Nietzsche is as dead as a door-nail.
(and yep, A Christmas Carol is another of my favourites)