注維摩詰經 8.57

8.57

若不盡皆是無盡相，無盡相即是空，空則無有盡不盡相，如是入者是為入不二法門。

or non-exhaustion, both are characteristics of non-exhaustion. The characteristic of non-exhaustion is itself emptiness, and in emptiness there is neither the characteristic of exhaustion nor that of non-exhaustion. Entering in this way is entering the Dharma-door of non-duality.”