大乘起信論裂網疏 2.15

2.15

從本已來不可言說、不可分別，一切言說唯假非實，但隨妄念無所有故。言真如者，此亦無相，但是一切言說中極，以言遣言，非其體性有少可遣、有少可立。

From the beginning it cannot be spoken of and cannot be conceptualized; all verbal explanations are merely provisional and not real, because they merely accord with deluded thoughts and are nonexistent. What is called tathatā is also markless; it is merely the culmination of all verbal explanations, using words to dismiss words, not that its essential nature has anything that can be dismissed or anything that can be established.