維摩經略疏 3.82

3.82

問：諸法皆空，何得以空譬空？答：《大論》云「以易解空譬難解空」，故約六喻十喻譬法空也。

Question: If all dharmas are empty, how can emptiness be used as a simile for emptiness? Answer: The Dàzhìdù lùn says: “Use easily understood emptiness to serve as a simile for difficult-to-understand emptiness.” Therefore, the six similes and ten similes are used to illustrate the emptiness of dharmas.