Heidegger, of course, was aware of the strangeness, indeed the nonsense, of his language. Carl Friedrich von Weisäcker once told him the Jewish anecdote about a man who perpetually sits in a tavern. When asked why he does so, he answers: "Well, it's my wife." "What about your wife?" "Oh, she talks and talks and talks ...." "What does she talk about?" "That, she doesn't say." When Heidegger heard the story he said, "Yes, that's how it is."-- Safranski, Martin Heidegger: Between Good and Evil, at 311.
... But was Heidegger talking about his own philsophy, or about Elfride?