“There has always been a temptation to classify economic goods in clearly defined groups, about which a number of short and sharp propositions could be made, to gratify at once the student’s desire for logical precision, and the popular liking for dogmas that have the air of being profound and are yet easily handled. But great mischief seems to have been done by yielding to this temptation, and drawing broad artificial lines of division where Nature has made none. The more simple and absolute an economic doctrine is, the greater will be the confusion which it brings into attempts to apply economic doctrines to practice, if the dividing lines to which it refers cannot be found in real life. There is not in real life a clear line of division between things that are and are not Capital, or that are and are not Necessaries, or again between labour that is and is not Productive.”

Source: Carry on, Jeeves

"Cornel West interviewed by bell hooks" in Breaking Bread: Insurgent Black Intellectual Life (1991)

100 Years of Mathematics: a Personal Viewpoint (1981)
Context: Logical analysis is indispensable for an examination of the strength of a mathematical structure, but it is useless for its conception and design. The great advances in mathematics have not been made by logic but by creative imagination.

Radio excerpt presented by Voice of America (17 January 2010) http://learningenglish.voanews.com/content/margaret-mead-1901-1978-one-of-the-most-famous-anthropologists-in-the-world-124869344/112571.html
2000s

Citizenship Papers (2003), The Failure of War

1850s, Latter-Day Pamphlets (1850), The Present Time (February 1, 1850)

Hyperion
Original: (de) Immerhin hat das den Staat zur Hölle gemacht, daß ihn der Mensch zu seinem Himmel machen wollte.

Macarthur and the American Century: A Reader (2001) edited by William M Leary

to translate the renewal of our national strength into the achievement of our national purpose.
Source: 1963, Third State of the Union Address