“It may take years to put your idea into action. But if it has real worth, time will prove it, and you will have something that will endure.”
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William A. Patterson 3
President of United Airlines from 1934 until 1966 1899–1980Related quotes

Remarks Recorded for the Opening of a USIA Transmitter at Greenville, North Carolina (8 February 1963) Audio at JFK Library (01:29 - 01:40) http://www.jfklibrary.org/Asset-Viewer/Archives/JFKWHA-161-010.aspx · Text of speech at The American Presidency Project http://www.presidency.ucsb.edu/ws/?pid=9551
1963
Variant: A man may die, nations may rise and fall, but an idea lives on. Ideas have endurance without death.

“Anything that doesn't take years of your life and drive you to suicide hardly seems worth doing.”
The Wall Street Journal, November 20, 2009, "Hollywood's Favorite Cowboy" http://online.wsj.com/article/SB10001424052748704576204574529703577274572.html by John Jurgensen <!--accessed: November 17, 2009-->
Variant: I’m not interested in writing short stories. Anything that doesn’t take years of your life and drive you to suicide hardly seems worth doing.
Context: I'm not interested in writing short stories. Anything that doesn't take years of your life and drive you to suicide hardly seems worth doing.
“An idea is something you have; an ideology is something that has you”

“Your action, and your action alone, determines your worth.”
Johann Gottlieb Fichte in The Vocation of Man [Die Bestimmung des Menschen] (1800), p. 94 : "You are here, not for idle contemplation of yourself, not for brooding over devout sensations — no, for action you are here; action, and action alone, determines your worth." [Nicht zum müßigen Beschauen und Betrachten deiner selbst, oder zum Brüten über andächtigen Empfindungen, — nein, zum Handeln bist du da; dein Handeln und allein dein Handeln bestimmt deinen Werth.]
Misattributed

Martin (1967) Design of real-time computer systems; cited in: John R. Ellis (1998) Objectifying Real-Time Systems. p. 249