What was the greatest discovery of all time?
Attributed to Albert Einstein, it was compound interest. To the philosopher Alfred North Whitehead, it was the discovery of the method of discovery. To Mel Brooks, it was Saran Wrap, because it’s transparent and it keeps food fresh. According to my wife, Celia, the greatest discovery (actually an invention) was the thermos jug, because when you put hot stuff in, it stays hot, and when you put cold stuff in, it stays cold, and, what’s more, it knows when to do what!
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“A More Perfect Heaven”