摩訶止觀 8.28

8.28

又初學中觀，斷於貪欲，不能得益，放心行不調事。初一行之，薄得片益。自此已後常行不息，亦無復益，行之不改。以己先益，化他令行，又引經為證。受化之徒但貪欲樂，無纖芥道益。崩騰耽湎遂成風俗，污辱戒律，陵穢三寶。周家傾蕩佛法，皆由此來。是住不調及住於調，何關不住調與不調？是名大礙，何關無礙？是增長非道，何關佛道？如是調與不調，皆名不調。何以故？悉是凡情，非賢聖行。

Moreover, beginners studying the contemplation of the middle sever lust, but unable to obtain benefit, give rein to their minds and practice unsubdued matters. At first, doing it once, they gain a slight, shallow benefit. From then on, they practice it constantly without ceasing, yet obtain no further benefit, continuing the practice without reform. Using their former benefit, they convert others to practice it, and further cite sūtras as proof. The disciples who receive this conversion merely crave sense pleasures, with not the slightest benefit of the path. Crudely plunging into indulgence, it eventually became a custom, defiling and humiliating the precepts, and insulting and polluting the Three Jewels. The overthrow and eradication of the Buddha-dharma by the Zhou dynasty all came from this. This is abiding in non-subduing and abiding in subduing; what has it to do with neither abiding in subduing nor in non-subduing? This is called great obstruction; what has it to do with non-obstruction? This is increasing non-paths; what has it to do with the Buddha-path? Such subduing and non-subduing are both called unsubdued. Why is this? They are all ordinary feelings, not the practice of the worthy and noble.