We are so isolated in our own little worlds, in our own little geographies, that it's pretty hard to understand where someone else is coming from. And so I think that we have to really think about what that means as a country and, frankly, whether this segregation that we have is durable over the long run.

As a culture, working-class white Americans like myself had no heroes. We loved the military but had no George S. Patton figure in the modern army. I doubt my neighbours could even name a high-ranking military officer.

We need to think about how we teach working-class children about not just hard skills, like reading and mathematics, but also soft skills, like conflict resolution and financial management.

People in my hometown voted for President Reagan - for many, like my grandpa, he was their first Republican - because he promised that tax cuts would bring higher wages and new jobs. It seemed he was right, so we voted for the next Republican promising tax cuts and job creation, George W. Bush. He wasn't right.

Bohr's influence on the physics and the physicists of our century was stronger than that of anyone else, even than that of Albert Einstein.

No inanimate object is ever fully determined by the laws of physics and chemistry.

When I was a kid, my grandparents were Greek immigrants on my father's side. My grandfather used to read me Greek myths, in which there are a great many goddesses and stories of strong women. And I was entranced by them. Then I started reading science fiction very young, and I loved it.

Although I often find that the feminist rhetoric - not feminism - can come across as simple-minded, self-regarding, nuance-averse and reductive - biology to physiology, history to psychology, procreation to gynecology, and so on - I have come to realize that we should all be feminists.