
Pennsylvania Coal Company v. H. J. Mahon, 260 U.S. 415, 415 (1922).
1920s
The Law of Mind (1892)
Pennsylvania Coal Company v. H. J. Mahon, 260 U.S. 415, 415 (1922).
1920s
Source: Better-World Philosophy: A Sociological Synthesis (1899), Egoism and Altruism, p. 96
Source: An Introduction to Cybernetics (1956), Part 3: Regulation and control, p. 260
“… Wizard's Fifth Rule: Mind what people do, not only what they say, for deeds will betray a lie.”
Source: Soul of the Fire
Source: Personal Knowledge (1958), p. vii-viii
Source: Ludwig von Bertalanffy (1901-1972) (1989), p. 4
Book 5 Section 11
Tusculanae Disputationes – Tusculan Disputations (45 BC)