Hume devised a third way between Hobbes and Locke that bolstered the former’s defense of stability and the latter’s defense of rebellion. This feat remains underappreciated. Hume’s third way rests on the idea of the public conscience, which, like Hobbes’s idea of the public conscience, derives from communication and consensus. The public conscience orients us toward the public interest, which, in Hume’s theory, is the authoritative standard by which individuals and government alike must abide. In this paper, I elaborate on (...) the moral psychological principles that underlie Hume’s concept of the public conscience, which is liable to both conservative liberal and progressive liberal interpretations. And I argue that Hume’s third way provides valuable insight into the logic of public political discourse in liberal societies. (shrink)