17. Wu, Golden Age of Zen, p. 129.
18. Ibid., p. 133.
19. Chang Chung-yuan, Original Teachings of Ch'an Buddhism, p. 169.
20. Ibid., p. 140.
21. Wu, Golden Age of Zen, p. 136.
22. Chang Chung-yuan, Original Teachings of Ch'an Buddhism, p. 171.
23. This is Case 1 of the Mumonkan, here quoted from a very readable new translation by Katsuki Sekida, Two Zen Classics: Mumonkan 6- Hekiganroku (New York: Weatherhill, 1977), p. 27.
24. Wu, Golden Age of Zen, pp. 144-45.
25. Blyth, Zen and Zen Classics, Vol. 3, p. 77.
26. Wu, Golden Age of Zen, p. 145.