.... Newton, experimental philosopher, slid a bodkin into his eye socket between eyeball and bone. He pressed with the tip until he saw 'severall white darke & coloured circles'.... Almost as recklessly, he stared with one eye at the sun, reflected in a looking glass, for as long as he could bear.

From poor beginnings, Newton rose to prominence and wealth, and Gleick uses contemporary accounts and notebooks to track the genius's arc, much as Newton tracked the paths of comets. Without a single padded sentence or useless fact, Gleick portrays a complicated man whose inspirations required no falling apples. --Therese Littleton