“Analysis of the supply of money, and in particular of changes in the supply of money, is simple in principle but extremely complex in practice, both in our hypothetical world and in the current real world. Simple in principle, because the supply of money is whatever the monetary authorities make if, complex in practice, because the decisions of the monetary authorities depend on numerous factors.”
Source: Money Mischief (1992), Ch. 2 The Mystery of Money
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Milton Friedman 158
American economist, statistician, and writer 1912–2006Related quotes

“To pay off the debt was to destroy the money supply.”
Source: Money: Whence It Came, Where It Went (1975), Chapter VIII, The Great Compromise, p. 90
Context: In numerous years following the war the Federal government ran a heavy surplus. It could not pay off it's debt, retire its securities, because to do so meant there would be no bonds to back the national bank notes. To pay off the debt was to destroy the money supply.

"Women and the Myth of Consumerism," Ramparts (1969)
Context: There is a persistent myth that a wife has control over her husband’s money because she gets to spend it. Actually, she does not have much more financial authority than the employee of a corporation who is delegated to buy office furniture or supplies. The husband, especially if he is rich, may allow his wife wide latitude in spending — he may reason that since she has to work in the home she is entitled to furnish it to her taste, or he may simply not want to bother with domestic details — but he retains the ultimate veto power. If he doesn’t like the way his wife handles his money, she will hear about it.

Source: Money Mischief (1992), Ch. 2 The Mystery of Money

L. Randall Wray, The Credit Money, State Money, and Endogenous Money Approaches: A Survey and Attempted Integration. (2005)

"The Meaning of Life".
The Meaning of Life and Other Essays (1990)

Sir Alfred Jules Ayer, in his "The Meaning of Life", collected in The Meaning of Life, and Other Essays (1990).
Misattributed

Freethespirit http://www.freethespirit.org.uk/6rev-cor.htm.