四明十義書 1.18

1.18

且今文棄三觀一，揀陰修觀，恰稱久修者本習，又能預示未修止觀者要知起觀之處。若剛廢此文，則無以稱久修者本習，又無以示未修者止觀行門也。則此玄觀心一科不可輒廢。約行觀義既壞，附法觀心之文又不可廢，帝慧王安可輒除耶？

Yet the present text discards three to contemplate one, singling out the aggregates to cultivate contemplation; this precisely accords with the original training of seasoned practitioners, and can also indicate beforehand to those who have not cultivated calming and contemplation that they must know the place to initiate contemplation. If you rigidly abolish this text, then there will be no way to accord with the original training of seasoned practitioners, nor any way to show the practice gate of calming and contemplation to those who have not cultivated it. Thus, the rubric of contemplating the mind in this Xuanyi cannot be rashly abolished. Since the meaning of contemplation according to practice is destroyed, and the text on contemplating the mind by appending to teachings cannot be abolished, how can the King of Sovereign Wisdom ever be rashly eliminated?