The two sets of sources, textual and nontextual, reveal bits of history to us in different ways, like the lame man riding on the shoulders of the blind man. When it comes to history, you can't trust anyone: The texts lie one way, while images and archeology mislead us in other ways. On the one hand, the gods did not fly around in big palaces, as the texts insist that they did, and we cannot know if women really did speak up as Gargi does in the Upanishads, or Draupadi in the Mahabharata.
In: The Hindus: An Alternative History, p. 34.