淨名玄論 6.18

6.18

The being and non-being of apprehension fixate on being and non-being; therefore, being does not express non-being, and non-being fixates on non-being, so non-being cannot express non-non-being. Since such being and non-being do not reveal the correct path of nonduality that is neither being nor non-being, it is called failure. As for the being and non-being of conventional designations through causes and conditions, being does not abide in being, and being expresses non-being; non-being does not abide in non-being, and therefore non-being expresses non-non-being. Since such being and non-being can express the correct path of nonduality, it is called success.