Labor Quotes - Page 4
David Hume (1758). “Essays and Treatises on several subjects, etc. New edition”, p.153
"A Tribute to Paul Erdos". Book edited by Alan Baker, Bela Bollobas and Andras Hajnal, December 13, 1990.
John Locke, Ruth Weissbourd Grant, Nathan Tarcov (1996). “Some Thoughts Concerning Education: And, Of the Conduct of the Understanding”, Hackett Publishing
Adam Smith (1843). “An Inquiry Into the Nature and Causes of the Wealth of Nations With a Life of the Author: Also a View of the Doctrine of Smith, Compared with that of the French Economists, with a Method of Facilitating the Study of His Works, from the French of M. Jariner”, p.7
Thomas Jefferson (2004). “Light and Liberty: Reflections on the Pursuit of Happiness”, p.6, Modern Library
Critique of the Gotha Program pt. 1 (1875).
Theodore Roosevelt (1967). “Writings”