Humility is the distinguishing virtue of the believer in freedom; arrogance, of the paternalist.

We measure poverty by what I believe is a very, very crude concept. We actually measure poverty by trying to get some kind of an estimate of the minimum expenditures on food that are required to maintain health, multiplying that number by three, and saying that's the level of poverty. And it's a very crude, inaccurate arrangement.

The only reason free markets have a ghost of a chance is that they are so much more efficient than any other form of organization.

"Free markets" is a very general term. There are all sorts of problems that will emerge. Free markets work best when the transaction between two individuals affects only those individuals. Most often, a transaction between you and me affects a third party. That is the source of all problems for government. That is the source of all pollution problems, of the inequality problem. This reality ensures that the end of history will never come.

I think almost every economist would agree that government gets itself in trouble when it tries to interfere with voluntary behavior.

Adam Smith's key insight was that both parties to an exchange can benefit and that, so long as cooperation is strictly voluntary, no exchange can take place unless both parties do benefit.

There is no logical basis for the prohibition of marijuana. $7.7 billion is a lot of money, but that is one of the lesser evils. Our failure to successfully enforce these laws is responsible for the deaths of thousands of people in Colombia. I haven't even included the harm to young people. It's absolutely disgraceful to think of picking up a 22-year-old for smoking pot. More disgraceful is the denial of marijuana for medical purposes.