Precisely constructed models for linguistic structure can play an important role, both negative and positive, in the process of discovery itself. By pushing a precise but inadequate formulation to an unacceptable conclusion, we can often expose the exact source of this inadequacy and, consequently, gain a deep understanding of the linguistic data. More positively, a formalized theory may automatically provide solutions for many problems other than those for which it was explicitly designed.

Free markets are based on the free circulation of labor. If you don't have free circulation of labor, you don't have free markets.

I am thinking of actual cases of adolescents, lets say, who think they have five hundred friends, because there are five hundred people on their Facebook account. But these are the kind of friends whose relation to you is that if you say 'I bought a sandwich'; they say 'did it taste good?' You know, that's a kind of interaction, but very different to having a real friend, somebody who you can actually talk to.

There have, for years, been comparative studies of religious fanaticism and factors that correlate with it. By and large, it tends to decline with increasing industrialization and education. The US, however, is off the chart, ranking near devastated peasant societies. About 1/2 the population believe the world was created a few thousand years ago: the justification for the belief is that that is what they were ordered to believe by authority figures to whom they were taught one must subordinate oneself. And on, and on.

If you sell me a car, we have perhaps made a good bargain for ourselves. But there are effects of this transaction on others, which we do not take into account. There is more pollution, the price of gas goes up, there is more congestion.

To understand how people organize social systems, we have to discover the principles that we create to make some societies intelligible.

The Democrats have pretty much given up on the white working class. That would require a commitment to economic issues and that's not their concern.