How do we reclaim our innate enchantment with the world? And how can we turn our natural curiosity into a deep, abiding love for knowledge? Frank Oppenheimer, the younger brother of the physicist J. Robert Oppenheimer, was captivated by these questions, and used his own intellectual inquisitiveness to found the Exploratorium, a powerfully influential museum of human awareness in San Francisco, that encourages play, creativity, and discovery--all in...