In May 2008, Thomas Cleary translated a collection of 22 writings on "bushidō" by warriors, scholars, political advisers, and educators, spanning 500 years from the 14th to the 19th centuries. Titled "Training the Samurai Mind: A Bushido Sourcebook," it gave an insider's view of the samurai world: "the moral and psychological development of the warrior, the ethical standards they were meant to uphold, their training in both martial arts and strategy, and the enormous role that the traditions of Shintoism, Buddhism, Confucianism, and Taoism had in influencing samurai ideals".