Economists sometimes do try to reduce behavior to law-like predictability. But people respond differently to different primes, to different contexts even from one moment to the next. We possess multiple selves that are aroused by different circumstances.

Tim Kaine has been obviously a governor. He's been a senator. He's one of the smartest rising stars in the Democratic Party. He is very plausible as someone who could sit in and be president.

The crossroads where government meets enterprise can be an exciting crossroads. It can also be a corrupt crossroads. It requires moral rectitude to separate public service from private gain.

For the Republican Convention, I think of Trump's speech and sort of the darkness, the fear of crime, the need for a strong arm really, and so that one core theme.

I've come to think that flourishing consists of putting yourself in situations in which you lose self-consciousness and become fused with other people, experiences, or tasks.

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.

I do think Donald Trump is a fundamentally unstabilizing force and that the people who swore to uphold the Constitution are going to have to take some measures at some point.