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
Proust, Marcel. Du côté de chez Swann [The Way by Swann's]. Paris: Grasset, 1913.
Proust, Marcel. Swann's Way, edited and translated by Lydia Davis. Penguin Classics, 2004.
Smith, Adam. The Wealth of Nations. Vol. 1, London: W. Strahan and T. Cadell, 1776, bk. 1, ch. 2.
Smith, Adam. The Wealth of Nations, edited by Edwin Cannan. The Modern Library, bk. 1, ch. 2.
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.