Mary Fasano, at age eighty-nine, earned her undergraduate degree from Harvard. David Ben-Gurion, the first prime minister of Israel, taught himself ancient Greek in old age to master the classics in the original. We might think, “What for? Who am I fooling? I’m at the end of the road.” But that thinking is a self-fulfilling prophecy, which hastens the mental decline of the use-it-or-lose-it brain. At ninety, the architect Frank Lloyd Wright designed the Guggenheim Museum. At seventy-eight, Benjamin Franklin invented bifocal spectacles. In studies of creativity, H. C. Lehman and Dean Keith
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