6. Chang Chung-yuan, Original Teachings of Ch'an Buddhism, pp. 117-18.

7. Wu, Golden Age of Zen, p. 194.

8. Chang Chung-yuan, Original Teachings of Ch'an Buddhism, p. 118.

9. Wu, Golden Age of Zen, p. 195.

10. Chang Chung-yuan, Original Teachings of Ch'an Buddhism, p. 119.

11. Sasaki, Recorded Sayings of Lin-chi, p. 43.

12. Ibid., p. 45.

13. Dumoulin, History of Zen Buddhism, p. 122.

14. Of Lin-chi's shout, R. H. Blyth says (Zen and Zen Classics, Vol. 3, p. 154): "[The shout] is a war-cry, but the fight is a sort of shadow-boxing. The universe shouts at us, we shout back. We shout at the universe, and the echo comes back in the same way. But the shouting and the echoing are continuous, and, spiritually speaking, simultaneous. Thus the [shout] is not an expression of anything; it has no (separable) meaning. It is pure energy, without cause or effect, rhyme or reason."

15. After Sasaki, Recorded Sayings of Lin-chi, p. 47.