Thomas Jefferson, letter to P. S. du Pont de Nemours (April 24, 1816); reported in Henry Augustine Washington, ed., The Writings of Thomas Jefferson: Being His Autobiography, Correspondence, Reports, Messages, Addresses, And Other Writings, Official and Private, Volume 5 (1854), p. 592. This sentence is one of many quotations inscribed on Cox Corridor II, a first floor House corridor, U.S. Capitol.https://en.wikiquote.org/wiki/Education