四明十義書 1.14

1.14

既是約行理觀直顯心性，十種三法文中何故不揀示識心為境，那無十法成乘？既全無此義，則定非理觀矣。

If it were principle contemplation according to practice directly revealing mind-nature, why in the text of the ten kinds of threefold dharmas is the conscious mind not singled out and shown as the object, and why are there no ten dharmas forming a vehicle? Since this meaning is entirely absent, it is definitively not principle contemplation.