The assumption that we can keep societies open and free to everybody is going to have to stop. We are going to have to recognize that some people simply are not qualified and do not want to belong a civil order. Until we begin to make discrimination along those lines, then I think we are going to be extremely vulnerable.

You can get a coalition of senators from particular states in America, for example, who want to construct highways or dams or ports which may well be very inefficient. The taxes would be paid by the people over the whole country, but the benefits would go to the few people in those particular locations. This type of spending is a rather gross waste of resources that worsened over the years as the government has been allowed to do more particularized things.

Liberals have lost the soul. We haven't recognized the necessity of defending our own system at the level of ideas. We have to get people to treat the idea of a free society as a civic religion or a faith. We need to fight for that faith.

If you create an artificial scarcity through public policy, artificial rent so to speak - setting up a new import quota or giving out a particular office that is very beneficial - people are going to invest money, time and resources in trying to secure that opportunity. If the value is created independently of the search for it, the search for it is wasted.

You have to have a government to provide you with legal order, with stability, enforcement of property rights, enforcement of contracts, definition of rules and regulations - the rules of the game, so to speak - and to provide certain shared goods and services, public services. Several people have tried to estimate this and they come out with figures like government spending at 15% of GDP. In the modern world it has gone to 40% or above. So we are way beyond the optimal, and that is easier to say than what the optimum is.

I think the world has changed dramatically since September 11th. It should force us to recognize that we are going to have to defend the free institutions of our society against those who are simply not willing to belong to a civil order.

How would the US be different today if people coming off the boat were greeted with a welfare check instead of a shovel?