One morning last week Henry wore my socks to school. You would think that socks would be, like clouds or waves, anonymous things, too nondescript and numerous to keep track of, but in fact I have some favorite socks and I could tell, just looking at the ankle trim of his socks, that these were they. “Mmmm, they’re so comfortable,” he said. “I really like them.” One day a long time ago, some anonymous day, in fact, unmarked, two gametes joined to produce a zygote, which became a morula and then, of course, a blastocyst. Then, after the proper amount of time, plus, it seemed, a few extra days, a boy. Then the boy started wearing my socks, and waking up at 6:30 on a Sunday morning in the Berkshires to watch the mist, which filled the valley, burn off, and to see three deer eat at the crab apple tree, stooping to pick fallen apples from the ground. “You know,” he said, “these socks are a little tight. Do they really fit you?” And he ran off to class, away from me and John. We are a drag on his great spirits in the morning.