肇論新疏 3.240

3.240

然則法無有無之相、聖無有無之知。聖無有無之知，則無心於內；法無有無之相，則無數（相）於外。於外無數、於內無心，此彼寂滅，物（境）我心冥一，怕爾無眹乃曰涅槃。涅槃若此，圖度絕矣。

Thus phenomena have no mark of being or non-being, and the sage has no cognition of being or non-being. When the sage has no cognition of being or non-being, there is no mind internally; when phenomena have no mark of being or non-being, there are no categories externally. Without categories externally and without mind internally, this and that are tranquil and extinguished, object and self are darkly unified in mind; serenely without omen, this is called nirvāṇa. If nirvāṇa is like this, conceptual calculation is cut off.