The real and effectual discipline which is exercised over a workman is that of his customers. It is the fear of losing their employment which restrains his frauds and corrects his negligence. – Adam Smith
Human destiny is bound to remain a gamble, because at some unpredictable time and in some unforeseeable manner nature will strike back. – Rene Dubos, Mirage of Health, 1959
If I had permitted my failures, or what seemed to me at the time a lack of success, to discourage me I cannot see any way in which I would ever have made progress. – Calvin Coolidge
