Western philosophers have long claimed that God, if such a being exists, is a personal force capable of reason, and that the path to a good human life is also the path to a happy one. But what if these claims prove false, or at least deeply misleading? The Aztecs of central Mexico had a rich philosophical tradition, recorded in Latin script by Spanish clergymen and passed down for centuries in the native Nahuatl language--one of the earliest transcripts being the Huehuetlatolli, or Discourses of the Elders, compiled by Friar Andr