Government has three primary functions. It should provide for military defense of the nation. It should enforce contracts between individuals. It should protect citizens from crimes against themselves or their property. When government — in pursuit of good intentions tries to rearrange the economy, legislate morality, or help special interests, the cost come in inefficiency, lack of motivation, and loss of freedom. Government should be a referee, not an active player.

People forget the fundamental distinction between Adam Smith's version of The Invisible Hand and what I suppose you could regard as Bastiat's version. The French idea was that there is somehow a harmony in nature so that by natural forces if people were left free to pursue their own interests they would benefit everybody. Adam Smith's was a much more subtle and sophisticated argument, that it is possible to set up institutions under which people pursuing their own interests will benefit everybody. His invisible hand required the right set of institutions and I think that's the case. After all, the distinction between a collectivist society and a market or individualist society is not whether people pursue their own interests. If I take Russia, for example, the people in Russia are all pursuing their own interests but the institutions set up in Russia make what is in each person's own interest different from what it would be in the United States or in Britain.

The Great Depression in the United States, far from being a sign of the inherent instability of the private enterprise system, is a testament to how much harm can be done by mistakes on the part of a few men when they wield vast power over the monetary system of a country.

The “something” that connects the two transactions is called money, and it has taken innumerable physical forms — from stones to feathers to tobacco to shells to copper, silver, and gold to pieces of paper and entries in ledger books. Who knows what will be the future incarnations of money? Computer bytes?

In the past century a myth has grown up that free market capitalism—equality of opportunity as we have interpreted that term—increases such inequalities, that it is a system under which the rich exploit the poor. Nothing could be further from the truth. Wherever the free market has been permitted to operate, wherever anything approaching equality of opportunity has existed, the ordinary man has been able to attain levels of living never dreamed of before. Nowhere is the gap between rich and poor wider, nowhere are the rich richer and the poor poorer, than in those societies that do not permit the free market to operate.

I can understand the teachers saying it’s a gun at my head, but they’ve got the same gun at the parents’ head at the moment. The parent goes up to the teacher and says, well, I’m not satisfied with what you’re doing, and the teacher can say, well tough. You can’t take him away, you can’t move him, you can’t do what you like, so go away and stop bothering me. That can be the attitude of some teachers today, and often is. But now that the positions are being reversed [with vouchers] and the roles are changed, I can only say tough on the teachers. Let them pull their socks up and give us a better deal and let us participate more.

Had the Federal Reserve System never been established, and had a similar series of runs started, there is little doubt that the same measures would have been taken as in 1907 — a restriction of payments.

"That is why, as Adam Smith put it, an individual who "intends only his own gain" is "led by an invisible hand to promote an end which was no part of his intention. Nor is it always the worse for the society that it was no part of it. By pursuing his own interest he frequently promotes that of the society more effectually than when he really intends to promote it. I have never known much good done by those who affected to trade for the public good.

Thanks to economists, all of us, from the days of Adam Smith and before right down to the present, tariffs are perhaps one tenth of one percent lower than they otherwise would have been. … And because of our efforts, we have earned our salaries ten-thousand fold.