What’s the World’s Greatest Invention
An engineer, a physicist, a mathematician, and a spiritualist were asked to suggest the greatest invention of all time. The engineer chose fire, which gave humanity the control over matter. The physicist chose the wheel, which gave humanity the control over space. The mathematician chose the alphabet, which gave humanity the control over symbols. The spiritualist chose the thermos bottle.
“Why a thermos bottle?” the others asked.
“Since the thermos keeps hot fluids hot in winter and frosty fluids chilly in summer.”
“Yes – so what?”
“Think about it.” said the spiritualist reverently. “That little bottle – how does it know?”
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