Bill's Notes

[T]he Glueck study data suggested that industriousness in childhood—as indicated by such things as whether the boys had part-time jobs, took on chores, or joined school clubs or sports teams—predicted adult mental health better than any other factor, including family cohesion and warm maternal relationships. “What we do,” Vaillant concluded, “affects how we feel just as much as how we feel affects what we do.”

The study has yielded some additional subtle surprises. Regular exercise in college predicted late-life mental health better than it did physical health.

This means that a glimpse of any one moment in a life can be deeply misleading. A man at 20 who appears the model of altruism may turn out to be a kind of emotional prodigy—or he may be ducking the kind of engagement with reality that his peers are both moving toward and defending against. And, on the other extreme, a man at 20 who appears impossibly wounded may turn out to be gestating toward maturity.