p, 125
The Morals of Economic Irrationalism (1920)
“It will be discovered that a system of exchange between peoples of goods and services will, when intelligently developed, gradually cancel out the need for buying and selling with money.”
Source: Humanity Comes of Age, A study of Individual and World Fulfillment (1950), Chapter VII The Council for Economics
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British artist 1898–1984Related quotes
Source: Interest and Inflation Free Money (1995), Chapter One, Four Basic Misconceptions About Money, p. 17-18

Source: Money and Credit in Capitalist Economies, 1990, p. 10; Cited in Howard Stein. "Theories of institutions and economic reform in Africa." World Development 22.12 (1994): 1833-1849.
Source: Marketing Myopia, 1960, p. 19

As quoted in "Exclusive: President François Hollande Talks Syria, Spies and Secrets With TIME" http://time.com/4936/exclusive-france-president-francois-hollande-time/ (5 February 2014), by Catherine Mayer, Time.

“The intelligent investor is a realist who sells to optimists and buys from pessimists.”
Source: The Intelligent Investor: The Classic Text on Value Investing (1949), Chapter II, The Investor and Stock-Market Fluctuations, p. 31
Context: Why could the typical investor expect any better success in trying to buy at low levels and sell at high levels than in trying to forecast what the market is going to do? Because if he does the former he acts only after the market has moved down into buying levels or up into selling levels. His role is not that of a prophet but of a businessman seizing clearly evident investment opportunities. He is not trying to be smarter than his fellow investors but simply trying to be less irrational than the mass of speculators who insist on buying after the market advances and selling after it goes down. If the market persists in behaving foolishly, all he seems to need is ordinary common sense in order to exploit its foolishness.

Source: Imperialism, The Highest Stage of Capitalism (1917), Chapter Three
Context: All the rules of control, the publication of balance sheets, the drawing up of balance sheets according ot a definite form, the public auditing of accounts, the things about which well-intentioned professors and officials - that is, those imbued with he good intention of defending and embellishing capitalism - discourse to the public, are of no avail. For private property is sacred, and no one can be prohibited from buying, selling, exchanging or mortgaging shares, etc.

Rupert on the Issues (2011)