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• I may not always be right, but I'm never wrong. -- Sam Goldwy
• The sign of a confident scientist: Often wrong, never in doubt.
• Doubt thou the stars are fire; Doubt that the sun doth move
  Doubt truth to be a liar; But never doubt I love....
• If you are beginning to doubt what I am saying, you are probably hallucinating.
  -- The Firesign Theatre, _Everything you know is Wrong_...
• I doubt, therefore I might be.
• I may have my faults, but being wrong ain't one of them.
• I am a computer. As such I never have or will make a mistake or error (I thought I did once, but I was wrong).