I Have No Doubt You Have a Sufficiently Good Opinion of Yourself To Bear Mine With Equanimity

W. Somerset Maugham? John Colton? Clemence Randolph? Apocryphal? Dear Quote Investigator: As a high school student I came across a wonderful zinger spoken to a self-important individual. I cannot recall the exact wording, but it was something like this: I perceive, Sir, you have a sufficiently good opinion of yourself that you can bear mine …