Abstract
Much has been written about Locke 's Second Treatise,[Note 1] but still, I believe, the book's main line of argument has been left unclear. Some concepts need more prominence---the duty to preserve mankind, the right of war, and private judgment; others need less---consent, majority rule, and property. Locke 's aim was not to show that political obligation rests upon consent: that is assumed without argument.[Note 2] What he set out to prove is that there are certain limits to political obligation which not even consent could set aside.[Note 3]