For most of my life I refused to work at any problem unless its solution seemed to be capable of being put to commercial use.
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Citation
Edison, Thomas Alva. Interview. New York Sun, Feb. 1917.
Edison, Thomas Alva. Interview. New York Sun, Feb. 1917.
Below are one or more quotes that share at least one tag with the quote at the top of the page
Federal Court. US v. Eugene V. Debs. RG 21, U.S. District Court, Northern District of Ohio, Criminal Case Files, 1912–1977, Criminal Case #4057. 9. NYT, 18 Sept. 1918.
Socrates. Quoted in Πολιτεία [Republic], written by Plato. c. 375 BCE.
Socrates. Quoted in Republic, written by Plato, translated by Desmond Lee. Penguin Classics, 2007.
Introductory Lectures on Psycho-Analysis
Freud, Sigmund. Einführung in die Psychoanalyse [Introduction to Psychoanalysis]. 1915-1917, University of Vienna, Vienna, Austria, lecture 1. Lecture series.
Freud, Sigmund. Introductory Lectures on Psychoanalysis. W. W. Norton & Company, 1977, lecture 1.