The essential notion of a capitalist society ... is voluntary cooperation, voluntary exchange. The essential notion of a socialist society is force.
Milton FriedmanThe great virtue of free enterprise is that it forces existing businesses to meet the test of the market continuously, to produce products that meet consumer demands at lowest cost, or else be driven from the market. It is a profit-and-loss system. Naturally, existing businesses generally prefer to keep out competitors in other ways. That is why the business community, despite its rhetoric, has so often been a major enemy of truly free enterprise.
Milton FriedmanThe Depression, which started in 1929 was rather mild from 1929 to 1930. And, indeed, in my opinion would have been over in 1931 at the latest had it not been that the Federal Reserve followed a policy which led to bank failures, widespread bank failures, and led to a reduction in the quantity of money.
Milton Friedman