For the last twenty years, Alan Lightman has been writing essays that display his genius for bringing literary and scientific concerns into harmony. <i>Dance for Two </i>gathers the best of Lightman&apos;s work. Here are pieces that touch on both the ethereal and the corporeal; the dependence of a ballerina on the laws of physics, the choice of every scientist makes between tinkering and theorizing, the unscientific nature of discovery, the impulse behind an unprompted smile. <i>Dance for Two </i>is an intimate and fascinating look into the creative compulsions shared by the artist and the scientist.