A mention of flatulence might conjure up images of bratty high school boys or lowbrow comics. But one of the most eloquent--and least expected--commentators on the subject is Benjamin Franklin. The writings in Fart Proudly reveal the rogue who lived peaceably within the philosopher and statesman. Included are "The Letter to a Royal Academy"; "On Choosing a Mistress"; "Rules on Making Oneself Disagreeable"; and other jibes. Franklin's irrepressible wit found an outlet in perpetrating hoaxes, attacking marriage and other sacred cows, and skewering the English Parliament. Reminding us of...