There is much of economic theory which is pursued for no better reason than its intellectual attraction; it is a good game. We have no reason to be ashamed of that, since the same would hold for many branches of mathematics.

Investment is a flighty bird which needs to be controlled.

The theory of the determination of wages in a free market is simply a special case of the general theory of value. Wages are the price of labour.

We ought to define a man's income as the maximum value which he can consume during a week, and still expect to be as well off at the end of the week as he was at the beginning.

The best of all monopoly profits is a quiet life.

There is much of economic theory which is pursued for no better reason than its intellectual attraction; it is a good game. We have no reason to be ashamed of that, since the same would hold for many branches of mathematics.

Some of the most serious fallacies of traditional economics have been due to confusion between optimum and equilibrium conditions; the apparent influence of Dr. Pangloss upon the development of economic thought is for the most part nothing but pure intellectual error.