, ▁Wu ▁family ▁T ' ai ▁Chi ▁Ch ' uan ), ▁also ▁known ▁by ▁English ▁speak ers ▁as ▁The ▁Gold ▁Book ▁because ▁of ▁the ▁colour ▁of ▁its ▁cover . ▁In ▁ 1 9 3 7 , ▁he ▁established ▁his ▁family ' s ▁first ▁school ▁in ▁Hong ▁Kong . ▁In ▁addition ▁to ▁his ▁teaching ▁and ▁literary ▁contributions ▁to ▁the ▁art , ▁Wu ▁K ung - ts ao ▁became ▁known ▁as ▁a ▁special ist ▁in ▁the ▁nei ▁k ung ▁aspect ▁of ▁T ' ai ▁Chi ▁training , ▁both ▁for ▁mart ial ▁purposes ▁and ▁for ▁th era pe ut ic ▁inter vent ions ▁along ▁the ▁lines ▁of ▁traditional ▁Chinese ▁medicine . ▁ ▁Wu ▁K ung - ts ao ▁stayed ▁on ▁the ▁main land ▁after ▁the ▁Chinese ▁Commun ist ▁take over ▁in ▁ 1 9 4 9 . ▁During ▁and ▁for ▁a ▁short ▁time ▁after ▁the ▁Cultural ▁Revolution ▁of ▁ 1 9 6 4 - 1 9 7 8 ▁he ▁was ▁imprison ed ▁by ▁the ▁Red ▁Gu ards ▁due ▁to ▁his ▁history ▁as ▁a ▁National ist ▁military ▁officer , ▁a ▁traditional ▁Conf u cian ▁scholar ▁and ▁T ao ist ▁teacher ▁as ▁well ▁as ▁a ▁host age ▁to ▁ensure ▁the ▁" good ▁behaviour " ▁of ▁the ▁rest ▁of ▁his ▁family ▁who ▁were ▁at ▁the ▁time ▁living ▁in ▁Shang hai ▁and ▁Hong ▁Kong . ▁He ▁was ▁rout in ely ▁tort ured ▁while ▁a ▁prisoner ▁but ▁was ▁finally ▁released ▁in ▁ 1 9 7 9 , ▁when ▁he ▁moved ▁again ▁to ▁Hong ▁Kong . ▁ ▁Wu ▁K ung - ts