肇論新疏 3.58

3.58

經曰：「真解脫者，離於言數，寂滅永安，無始無終、不晦不明、不寒不暑，湛若虛空，無名無說。」論曰：「涅槃非有亦復非無，言語道斷，心行處滅。」

A sūtra states: 'True liberation transcends words and enumeration; it is peaceful, ceased, and eternally serene, without beginning and without end, neither obscure nor bright, neither cold nor hot, pure and still like empty space, without name and without exposition.' A treatise states: 'Nirvāṇa is neither existent nor non-existent; the path of language is cut off, and the sphere of mental activity has ceased.'