Source: This Law of Ours and Other Essays (1987), Chapter: Calling All Muslims, Radio Broadcast #1, p 92
“People … become so preoccupied with the means by which an end is achieved, as eventually to mistake it for the end.”
Ethics (New York:1915), § 14, pp. 38-39
The Principles of Ethics (1897), Part I: The Data of Ethics
Context: People … become so preoccupied with the means by which an end is achieved, as eventually to mistake it for the end. Just as money, which is a means of satisfying wants, comes to be regarded by a miser as the sole thing to be worked for, leaving the wants unsatisfied; so the conduct men have found preferable because most conducive to happiness, has come to be thought of as intrinsically preferable: not only to be made a proximate end (which it should be), but to be made an ultimate end, to the exclusion of the true ultimate end.
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Herbert Spencer 81
English philosopher, biologist, sociologist, and prominent … 1820–1903Related quotes

Teichert, Corina. From Attempts to Crossing Borders (Vom Versuch, Grenzen zu überschreiten) http://www.j-zeit.de/archiv/artikel.1282.html, Jüdische Zeitung, 2008-07-28

“Treat people as an end, and never as a means to an end”

“History is facts which become lies in the end; legends are lies which become history in the end.”
As quoted in The Observer (22 September 1957)
Context: What is history after all? History is facts which become lies in the end; legends are lies which become history in the end.

Quote in 'Artist's Voice', Kuh; as cited in Outside the Lines, David W. Galenson, Harvard University Press, 2001, p. 109
posthumous

“In any relationship in which two people become one, the end result is two half people.”