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I have great faith in fools — self-confidence my friends call it. — Edgar Allan Poe

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There’s no sense in being precise when you don’t even know what you’re talking about. — John Von Neumann

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From The New York Review of Books: The World on a String It is better to be wrong than to be vague. — Freeman Dyson

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The longer I live the more I see that I am never wrong about anything, and that all the pains I have so humbly taken to verify my notions have only wasted my time. — George Bernard Shaw