The only relevant test of the validity of a hypothesis is comparison of prediction with experience.

The same thing will happen in China that happened in Chile. Political freedom will ultimately break out of its shackles. Tiananmen Square was only the first episode. It is headed for a series of Tiananmen Squares. It cannot continue to develop privately and at the same time maintain its authoritarian character politically. It is headed for a clash. Sooner or later, one or the other will give.

The power to determine the quantity of money... is too important, too pervasive, to be exercised by a few people, however public-spirited, if there is any feasible alternative. There is no need for such arbitrary power.

You had a flood of immigrants, millions of them, coming to this country. What brought them here? It was the hope for a better life for them and their children. And, in the main, they succeeded. It is hard to find any century in history, in which so large a number of people experience so great an improvement in the conditions of their life, in the opportunities open to them, as in the period of the 19th and early 20th century.

When you have a time of crisis what happens depends on what ideas are floating around, and what ideas have been developed, and thought through, and are made effective.

Germany cannot get out of the euro. What it has to do, therefore, is make the economy more flexible - to eliminate the restrictions on prices, on wages and on employment; in short, the regulations that keep 10 percent of the German workforce unemployed.

I'm not in favor of no government. You do need a government. But by doing so many things that the government has no business doing, it cannot do those things which it alone can do well. There's no other institution in my opinion that can provide us with protection of our life and liberty. However, the government performs that basic function poorly today, precisely because it is devoting too much of its efforts and spending too much of our income on things which are harmful. So I have no doubt that that's the major single problem we face.