When I sat down to make a list of characters in history who exhibited curiosity, most were women. I thought it was sheer accident, and then I began to wonder.

The range of weapons at the disposal of military powers is terrifying in its capacity to damage the world and its inhabitants, perhaps even to bring humanity's long story to its end.

If we do not, as historians, write the history of great events as well as the small stories that make up the past, others will, and they will not necessarily do it well.

You shouldn't expect people in the past to do things they couldn't have done.

To me, what's really important about the Green New Deal isn't, like, one of the elements of it: it's the concept. It's the concept that we have a national emergency commensurate with a depression or a war. And then the second part of it, the concept that, in rising to meet that challenge, there's a ton of economic opportunity.

The rise of man from the animal to the human level was prolonged by the necessity of rising from a state of barbarism and violence to one of order and peace.

Everybody who went to Vietnam carries his or her own version of the war. Only 10 percent engaged in combat; the American elephant, pursuing the Vietnamese grasshopper, was extraordinarily heavy with logistical support.

Germany has spent the decades since World War II in national penance for Nazi crimes. America spent the decades after the Civil War transforming Confederate crimes into virtues. It is illegal to fly the Nazi flag in Germany. The Confederate flag is enmeshed in the state flag of Mississippi.