The Man Who Was Thursday: A Nightmare (Modern Library Classics) - G.K. Chesterton

But Chesterton is also concerned with more serious questions of honor and truth (and less serious ones, perhaps, of duels and dualism). Our hero is Gabriel Syme, a policeman who cannot reveal that his fellow poet Lucian Gregory is an anarchist. In Chesterton's agile, antic hands, Syme is the virtual embodiment of paradox:

He came of a family of cranks, in which all the oldest people had all the newest notions. One of his uncles always walked about without a hat, and another had made an unsuccessful attempt to walk about with a hat and nothing else. His father cultivated art and self-realization; his mother went in for simplicity and hygiene. Hence the child, during his tenderer years, was wholly unacquainted with any drink between the extremes of absinthe and cocoa, of both of which he had a healthy dislike.... Being surrounded with every conceivable kind of revolt from infancy, Gabriel had to revolt into something, so he revolted into the only thing left--sanity.