We might say that Kennedy, if only for this brief period of a little less than two weeks, managed to achieve that stage of clarity spoken about in the ancient Chinese text The Daodejing. As he stared down nuclear annihilation, he was: Careful as someone crossing an iced-over stream. Alert as a warrior in enemy territory. Courteous as a guest. Fluid as melting ice. Shapable as a block of wood. Receptive as a valley. Clear as a glass of water.

