Kuo Hsiang, COMMENTARY ON THE CHUANG TZU, ch. 6, NHCc, 3:19a-b, in Wing-Tsit Chan, Chinese Philosophy, Chapter 19.
As pointed out before, neither Wang Pi nor Kuo Hsiang considered Lao Tzu or Chuang Tzu a sage. Instead, their sage was Confucius. This is amazing, but the reason is really not far to seek. For to Kuo Hsiang, especially, the ideal person is a sage who is sagely within and kingly without" and who travels in both the transcendental and mundane worlds. According to the Neo-Taoists, Lao Tzu and Chuang Tzu traveled only in the transcendental world and were therefore one-sided, whereas Confucius was truly sagely within and kingly without.