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• I know you believe you understand what you think I said, but I'm not sure you realize what you heard is not what I really meant.
• I know that you believe that you understood what you think I said, but I am not sure you realize that what you heard is not what I meant.
  -- Robert McCloskey, U.S. State Department spokesman, at a press briefing during the Vietnam Wa...
• I know you think you thought you knew what you thought I said, but I'm not sure you understood what you thought I meant.
• I meant what I said --- I think.
• It's not what you say, it's what I think you said.
• If you listened hard enough the first time, you might have heard what I meant to say.
• I don't know, what do you think?
• I know you think that you understood what you thought I said, but I am not all that sure that you understand that I seldom say what I think and even less often do I mean what I say.
• You didn't say what you said I said you said.