Sometimes, you go - you achieve a few things in life. I have achieved more career success than I ever experienced or that I ever thought. And I just realized, it doesn't make you happy. It's an elemental truth. It's so true.

Empathy makes you more aware of other people's suffering, but it's not clear it actually motivates you to take moral action or prevents you from taking immoral action.

It’s worth noting that you can devote your life to community service and be a total schmuck. You can spend your life on Wall Street and be a hero

I take a benign view of digital connectedness. I notice in most young people's lives, Facebook and such doesn't replace normal dating or hanging out, it just facilitates it.

There is the English language and then there's the Trump language.

Of course I don't know what's going on in that meeting on in the mind of Donald Trump. But I do know one of the things President Barack Obama was struck by was how much time he spent on cyber-security as president. And one of the things he said was that, in the years ahead, the next president will be spending even more time. And cyber-security isn't a thing that goes away after this election. It's a constant flow.

It’s not that Egypt doesn’t have a recipe for a democratic transition. It seems to lack even the basic mental ingredients.