Henry Ford book My Life and Work
Source: My Life and Work (1922), Chapter XII, Money - Master or Servant
Lewin (1943, 118), as cited in Karl E. Weick, "Theory and practice in the real world." in: The Oxford Handbook of Organization Theory, Tsoukas et al. (eds.), Oxford University Press, 2003, p. 460; Also in Lewin, K. (1951). Field theory in social science: Selected theoretical papers (D. Cartwright, Ed.). New York, NY: Harper & Row
1940s
Henry Ford book My Life and Work
Source: My Life and Work (1922), Chapter XII, Money - Master or Servant
James Van Allen (1914–2006) American nuclear physicist
Comments to an undergraduate physics class about transformers, Reach Into Space http://www.time.com/time/magazine/article/0,9171,892531,00.html, Time, 1959-05-04.
“Nothing can be more idle than the opposition of theory to practice!”
Jean-Baptiste Say (1767–1832) French economist and businessman
Source: A Treatise On Political Economy (Fourth Edition) (1832), Introduction, p. xxi
“One test of good theory is that it have practical implications.”
Charles Perrow (1925–2019) American sociologist
Source: 1970s, Organizational Analysis: A Sociological View, 1970, p. vii
Context: It is surprising how much discipline is imposed upon theory by requiring that it ‘make a difference’ and provide guidance or useful illumination. I learned long ago from students in professional schools that questions of ‘so what’ or ‘what relevance does this have’ do not signify impatience with theory per se, much less anti-intellectualism, but only impatience with the obvious, general, remote, and vague statements that often parade as social science theory. One test of good theory is that it have practical implications.
Michel Henry (1922–2002) French writer
Michel Henry, Marx I. une philosophie de la réalité, éd. Gallimard, coll. « Nrf », 1976, p. 353
Books on Economy and Politics, Marx. A Philosophy of Human Being (1976)
Original: (fr) Parce que la pratique est subjective, la théorie qui est toujours la théorie d’un objet, ne peut atteindre la réalité de cette pratique, ce qu’elle est en elle-même, sa subjectivité précisément, mais seulement se la représenter, de telle manière que cette représentation laisse hors d’elle l’être réel de la pratique, l’effectivité du faire. La théorie ne fait rien.
“A good teacher offers practice, a bad one offers theories.”
Anthony de Mello (1931–1987) Indian writer
Cultivation
One Minute Wisdom (1989)
Thomas Robert Malthus Principles of Political Economy
Book I, Introduction, p. 8
Principles of Political Economy (Second Edition 1836)
Brian Campbell Vickery (1918–2009) British information theorist
Preface (1961) p. vi; Partly cited by Stephen E. Robertson (2011) " On retrieval system theory http://www.iskouk.org/conf2011/papers/robertson.pdf". <br class="br">On Retrieval System Theory (1961)
“There is nothing which at once affects a man so much and so little as his own death.”
Samuel Butler (1835–1902) novelist
The Defeat of Death
The Note-Books of Samuel Butler (1912), Part XXIII - Death
Mao Zedong (1893–1976) Chairman of the Central Committee of the Communist Party of China
On Practice (1937)