“We are a sum total of what we have learned from all who have taught us, both great and small.”
Source: understanding your potential discovering the hidden you
Fors Clavigera,, letter xlii, ( 1 June 1874 https://archive.org/stream/forsclavigera02ruskiala#page/204/mode/2up; quoted by William Archer in America To-Day).
Fors Clavigera (1871-1878 and 1880-1884)
“We are a sum total of what we have learned from all who have taught us, both great and small.”
Source: understanding your potential discovering the hidden you
"The Spanish Element in Our Nationality," http://www.bartleby.com/229/5004.html letter to the Philadelphia Press (20 July 1883), later published in The Complete Prose Works of Walt Whitman (1892), part V: November Boughs
Perry Anderson, " Socialism and pseudo-empiricism http://newleftreview.org/static/assets/archive/pdf/NLR03401.pdf." New Left Review 35 (1966): 2-42; as cited in: Blackledge, Paul. Perry Anderson, Marxism and the New Left. Merlin Press, 2004. p. 91.
“Dmitry confessed once that he learned English hoping to play in England one day.”
(Yuri Zavarzin, former owner of FC Dynamo)<ref> Мартин ГАШЕК ПОЧЕМУ БЫ БРАТУ-ДОМИНАТОРУ ТАКЖЕ НЕ ПОИГРАТЬ В "ДИНАМО"?! http://footbik.narod.ru/RF2004/obz_kom/obzorDYNAMO2.htm
Alles Gescheite ist schon gedacht worden.
Man muss nur versuchen, es noch einmal zu denken.
Bk. II, Observations in the Mindset of the Wanderer: Art, Ethics, Nature
Wilhelm Meister's Wanderjahre (Journeyman Years) (1821–1829)
Variant: All truly wise thoughts have been thoughts already thousands of times; but to make them truly ours, we must think them over again honestly, till they take root in our personal experience.
Speech in Birmingham (27 October 1858), quoted in G. M. Trevelyan, The Life of John Bright (London: Constable, 1913), pp. 271-272.
1850s
Address to Polaroid employees at Symphony Hall in Boston, Massachusetts (5 February 1960), as quoted in Insisting on the Impossible : The Life of Edwin Land (1998) by Victor K. McElheny, p. 198
Context: The world is a scene changing so rapidly that it takes every bit of intuitive ability you have, every brain cell each one of you has, to make the sensible decision about what to do next. You cannot rely upon what you have been taught. All you have learned from history is old ways of making mistakes. There is nothing that history can tell you about what we must do tomorrow. Only what we must not do.