My complete translation of the Chuang Tzu was published by Bantam Books in the late summer of 1994. Because of the nature of that publication, it was impossible for me to include all of the notes and commentary that I had prepared during the course of my work on the text. As with my edition of the Tao Te Ching (Bantam, 1990), however, I promised in the Chuang Tzu (p. liv) that I would issue in Sino-Platonic Papers a separate set of materials designed for those individuals who would like more detailed information on specific points. That is the genesis of this particular volume.