The man who is engaged in experiments with a view to some great scientific discovery or invention is not blamed afterwards for the poverty that he has made his family endure, provided that his efforts are crowned with ultimate success. If, however, he never succeeds in making the discovery or the invention that he was attempting, public opinion condemns him as a crank, which seems unfair, since no one in such an enterprise can be sure of success in advance.
Source:The Conquest of Happiness, chap. 8: Zest
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