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.

There is not a line in 'The Wealth of Nations' that is not still applicable to this day.

To the free man, the country is the collection of individuals who compose it, not something over and above them. He is proud of a common heritage and loyal to common traditions. But he regards government as a means, an instrumentality, neither a grantor of favors and gifts, nor a master or god to be blindly worshipped and served.

Italy may well be the main problem. It has benefited most from the euro by having been able to get the euro interest rate instead of what otherwise would have been its own. That would be much higher because Italy has been accumulating so much debt. In the past, Italy has inflated away its debt. The virtue of the euro is that Italy can't do it alone. A tight ECB policy wouldn't permit that to happen again.

How do you hold down government spending?

The great virtue of a free market system is that it does not care what color people are; it does not care what their religion is; it only cares whether they can produce something you want to buy. It is the most effective system we have discovered to enable people who hate one another to deal with one another and help one another.

I would say that in this world, the greatest source of inequality has been special privileges granted by government.