Book excerpt: "Taking the Autobiography as the key to Franklin's thought, Weinberger argues that previous assessments have not yet probed to the bottom of Ben's famous irony and elusiveness. While others take the self-portrait as an elder statesman's relaxed and playful retrospection, Weinberger unveils it as the window to Franklin's deepest reflections on God, virtue, justice, equality, natural rights, love, the good life, the modern technological project, and the place and limits of reason in politics and human experience. Along the way, Weinberger explores Franklin's ribald humor, usually ignored or toned down by historians and critics, and shows it to be charming - and philosophic.".