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

I kind of like social media, and I like hearing from people. I don't like the ugly stuff, but there are some people - smart people - who have a very different perspective, and I'll get a backlash from them. And this isn't necessarily a bad thing.

Something as important and central and encompassing as empathy can't be all bad. I think empathy plays a role in intimate relationships, where you might want your partner not just to care about you or understand you but to feel what you feel.

It would be nice if everybody who had something interesting to say about my work could say it politely and civilly, but it doesn't work that way... Sometimes people are just really nasty.

I think there's some evidence that when it comes to being a doctor or nurse, a police officer or therapist, that empathetic engagement leads to burn-out. Imagine if you're dealing with severely ill children, and you felt their pain all the time, and the pain of their parents - you wouldn't be able to do that job for very long. It would kill you.

It has been a period where people have been far nicer to one another in every possible way. I'm not saying it's because we're dropping our empathy that we're nicer to each other, just that the drop doesn't seem to be causing any harm.

This enthusiasm [for empathy] may be misplaced. Empathy has some unfortunate features – it is parochial, narrow-minded and innumerate. We’re often at our best when we’re smart enough not to rely on it.