Thomas Paine (1737-1809) was England's greatest revolutionary: no other reformer was as actively involved in events of the scale of the American and French Revolutions, and none wrote such best-selling texts with the impact of Common Sense and Rights of Man. No one else combined the roles of activist and theorist, or did so in the 'age of revolutions', fundamental as it was to the emergence of the 'modern world'. But his fame meant that he was taken...