"Wittgenstein very fittingly compares a certain type of philosopher with a fly in a bottle, going on and on, buzzing about. And he says it is the task of his philosophy to show the fly the way out of the bottle. But I think it is Wittgenstein himself who is in the bottle and never finds his way out of it; and I certainly don’t think he has shown anybody else the way out."
--Karl Popper (1902-1994), author of The Logic of Scientific Discovery and The Open Society and Its Enemies. (Quoted from Modern British Philosophy, edited by Bryan Magee [St. Martin's Press, 1971])