The reversal here cuts deeper than mere optimism—Márquez suggests that aging isn't something that happens *to* us, but something we *do* through surrender. Most wisdom about aging treats it as inevitable decline we must accept gracefully, but he's identifying stagnation as the actual culprit, the thing that calcifies us from within. A retired accountant who took up watercolor at seventy and painted every morning looked a decade younger than a sedentary colleague of sixty-five, not because of genetics but because one person kept reaching toward something while the other had folded inward. The quote matters because it moves responsibility from time's passage to our own choices—a burden, yes, but also a strange kind of freedom.