I've been working through Saul Kripke's Naming And Necessity and I recently stumbled across this gem on page 64. Commenting on the cluster concept notion of proper names he says:
Let me state then what the cluster concept theory of names is. It really is a nice theory. (The only defect I think it has is probably common to all philosophical theories. It's wrong. You may suspect me of proposing another theory in its place; but I hope not, because I'm sure it's wrong too if it is a theory.)Priceless!