I love teaching. I wouldn't take a job that didn't include it.

Families survive the terrible twos because toddlers aren't strong enough to kill with their hands and aren't capable of using lethal weapons.

You might argue on utilitarian grounds that the best way for the world to work is for everybody to take care of themselves first. And people have made that argument. But I just think we would be so much better off if we could care for distant others even a little bit more.

I have two teenage sons, and they're both surviving, thriving, and having a great time, and they're always on social media.

I think Americans are always going to care more about Americans than about Mexicans.

Philosophers have often looked for the defining feature of humans — language, rationality, culture, and so on. I'd stick with this: Man is the only animal that likes Tabasco sauce.

What I mean by "empathy" is putting yourself in other people's shoes, feeling what they feel.