The fact was that American enterprise in the twenties had opened its hospitable arms to an exceptional number of promoters, grafters, swindlers, impo… - John Kenneth Galbraith

Broadly speaking, [Keynesianism means] that the government has a specific responsibility for the behavior of the economy, that it doesn't work on its own autonomous course, but the government, when there's a recession, compensates by employment, by expansion of purchasing power, and in boom times corrects by being a restraining force. But it controls the great flow of demand into the economy, what since Keynesian times has been the flow of aggregate demand. That was the basic idea of Keynes so far as one can put it in a couple of sentences.

Seaboard Air Line, which was thought by numerous innocents to provide a foothold in aviation, was another favorite, although, in fact, it was a railroad.

The crash in 1929, however, did have one therapeutic effect: it, somewhat exceptionally, lingered in the financial memory. For the next quarter of a century securities markets were generally orderly and dull. Although this mood lasted longer than usual, financial history was not at an end. The commitment to Schumpeter’s mania was soon to be reasserted.