Raymond Smullyan (my favourite guy to quote around here) told the following story in one of his books. A particular fellow was famous for his modesty. One day

Raymond Smullyan (my favourite guy to quote around here) told the following story in one of his books. A particular fellow was famous for his modesty. One day he started signing all of his correspondence "He who is modest." This irked one of his detractors, who wrote back to ask, "How you be modest if you sign your correspondence so flamboyantly?" The result came back swiftly: "I no longer think of my modesty as a virtue."