The Kama Sutra, or Aphorisms on Love, has survived at least 1400 years as a dominant text on sexual relations between men and women. Vatsyayana claimed to have written the Kama Sutra while a religious student, "in contemplation of the Deity" - but references to older works, shrewd disputations by Vatsyayana of those authors' recommendations, and careful cataloging of practices in various of the In...