Alvin E. Roth

The simple model of a bridge is great, and you could not build a bridge without understanding it well. But if you're actually building the bridge, you need to know the site. A lot of economics is like that: When prices go up, demand is gonna go down. You can't forget that and run your economy. But it's not the only thing you need to know.

There is this absurd assumption that the revitalisation of the public sphere is always a good thing. I think people tend to confuse 'civic' and 'civil,' and they believe that everything that is done by citizens is necessarily a good thing because you build a network, an association.