From Magick Without Tears
www.hermetic.com/crowley/mwt/mwt_06.html
"3: This note is from Crowley's commentary to The Vision and the Voice (see references in note above). Also, in a marginal note to his copy of Equinox I (5), Crowley wrote against "... or if the three schools be not one." the remark: "They are. Θηριον 9°=2°", implying that having become a Magus he now did know this – T.S."
Also, it sounds as if you're conflating Taoism with the Yellow School.
Also from MWT:
"The Yellow School of Magick possesses one perfect classic. The Tao Teh King."
"Taoism has as little to do with the Tao Teh King as the Catholic Church with the Gospel."