the merchant had observed that the marginal utility of daughters decreases with surprising rapidity. - Joan Robinson

'Capital' is not what capital is called, it is what its name is called.

Modern technique, as Marx pointed out, fosters the concentration of capital, and the levels of profits is supported by a scarcity of enterprise which is not due to the real cost of risk-bearing, but to the scarcity of individuals who have anything to risk.

But, as soon as speculators become an important influence in the market, their business is to speculate on each others behaviour.