legendary Grant Study at Harvard Medical School has borne this out. The study—the largest longitudinal study of human beings to date—began tracking 268 Harvard male sophomores between 1938 and 1944. In an effort to determine what factors contribute most strongly to “human flourishing,” the study followed these men for seventy-five years, measuring an astonishing range of psychological, anthropological, and physical traits—from personality type to IQ to drinking habits to family relationships to “hanging length of his scrotum.”11 The study found that the depth and meaningfulness of a person’s
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