Governments never learn. Only people learn.

And where are you going to get these angels who are going to run society for us?

Keynes was a great economist. In every discipline, progress comes from people who make hypotheses, most of which turn out to be wrong, but all of which ultimately point to the right answer. Now Keynes, in 'The General Theory of Employment, Interest and Money,' set forth a hypothesis which was a beautiful one, and it really altered the shape of economics. But it turned out that it was a wrong hypothesis. That doesn't mean that he wasn't a great man!

Nobody spends somebody else's money as carefully as he spends his own.

The way you solve things is by making it politically profitable for the wrong people to do the right thing.

Hong Kong is the bellwether. If the Chinese stick to their agreement to let Hong Kong go its own path, then China will also go that way. If they don't, that is a very bad sign. I'm optimistic.

Drugs are a tragedy for addicts. But criminalizing their use converts that tragedy into a disaster for society, for users and non-users alike. Our experience with the prohibition of drugs is a replay of our experience with the prohibition of alcoholic beverages.