四明十義書 1.22

1.22

夫評論佛法者，必須解義決定、發言誠諦，知勝知負、能進能退。儻心無所詣，語自相違，已負而更進者，必不可與論道。吾祖之垂誡也。然今為惜乎大教，求止不獲，故略言其始末，俾少知其得失矣。

Those who critically discuss the Buddha-Dharma must be resolute in understanding the doctrine and speak with sincerity and truthfulness. They must know victory and defeat, and be able to advance and retreat. If their minds lack any attainment, their words contradict themselves, and yet, having already been defeated, they still advance, one must never discuss the Way with them. Such is the admonition handed down by our ancestral masters. However, out of cherishing the great teaching, I have sought to refrain but could not; thus I briefly state its beginning and end, so that [readers] may slightly know its gains and losses.