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“How are you going to teach logic in a world where everybody talks about   the sun setting, when it’s really the horizon rising?” — Cal Craig,   quoted in Howard Eves, Mathematical Circles Revisited, 1971 [via]
Image [via]

“How are you going to teach logic in a world where everybody talks about the sun setting, when it’s really the horizon rising?” — Cal Craig, quoted in Howard Eves, Mathematical Circles Revisited, 1971 [via]

Image [via]