Republicans, supposed defenders of limited government, actually are enablers of an unlimited presidency. Their belief in strict construction of the Constitution evaporates, and they become, in behavior if not in thought, adherents of the woolly idea of a 'living Constitution.' They endorse, by their passivity, the idea that new threats justify ignoring the Framers' text and logic about shared responsibility for war-making.

Political nature abhors a vacuum, which is what often exists for a year or two in a party after it loses a presidential election.

Modern Americans travel light, with little philosophic baggage other than a fervent belief in their right to the pursuit of happiness.

The greatest threat to civility - and ultimately civilization - is an excess of certitude. The world is much menaced just now by people who think that the world and their duties in it are clear and simple. They are certain that they know what - who - created the universe and what this creator wants them to do to make our little speck in the universe perfect, even if extreme measures - even violence - are required.

Since the emergence of the Republican Party, only two Democratic presidents, Franklin Roosevelt and John Kennedy, have been followed by Democrats, and both FDR and JFK died in office, so their successors ran as incumbents.

Americans, more than most people, believe that history is the result of individual decisions to implement conscious intentions. For Americans, more than most people, history has been that.... This sense of openness, of possibility and autonomy, has been a national asset as precious as the topsoil of the Middle West. But like topsoil, it is subject to erosion; it requires tending. And it is not bad for Americans to come to terms with the fact that for them too, history is a story of inertia and the unforeseen.

All politicians are to some extent salesmen.