“Discussion is an exchange of knowledge; argument an exchange of ignorance.”
As quoted in The School Day Begins : A Guide to Opening Exercises, Grades Kindergarten - 12 (1967) by Agnes Krarup
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Robert Quillen 4
American journalist 1887–1948Related quotes

“Exchange value forms the substance of money, and exchange value is wealth.”
Grundrisse (1857-1858)
Source: Notebook II, The Chapter on Money, p. 141.

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: The Poker Face of Wall Street (2006), Chapter 5, Pokernomics, p. 127

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Philosophy, Science and Art of Public Administration (1939)