"Tibet preserved as best as it could, what India was no longer in a position to do. For example, 4000 books belonging to the Sanskrit, Pali and Prakrit literature were translated into Tibetan language. Today, about 3800 of them are no longer even known in India. They were so completely destroyed. The work of destruction was so complete. Today much of old India is found in neighbouring countries like Tibet and Siam and Cambodia; and India's old past history cannot be reconstructed except with their aid."