大乘起信論裂網疏 3.18

3.18

智相，即別境中之慧心所也，此相唯與前七相應。第七但緣第八見分，計為實我實法，生於愛心，愛即根本煩惱中之貪也。第六遍緣三界一切境界，遍起愛非愛心，愛即是貪，非愛即瞋。前五各緣現在一塵境界，各起愛非愛心。然此智相亦全攬真如為體，與前覺義毫無差別，若能了達智無智相，即為證得如來智慧矣。

The mark of cognition is precisely the mental factor of understanding among the particular states. This mark is associated only with the first seven [consciousnesses]. The seventh [consciousness] only conditions the perceiving component of the eighth, falsely grasping it as a real self and real phenomena, and produces a mind of like; "like" is greed among the primary defilements. The sixth [consciousness] universally conditions all objects of the three realms, universally generating minds of like and dislike; "like" is greed, and "dislike" is anger. The first five each condition an object of one current sense datum, each generating minds of like and dislike. However, this mark of cognition also completely takes tathatā as its essence, having not the slightest difference from the earlier meaning of enlightenment. If one can fully realize that cognition is devoid of the mark of cognition, one will then realize the wisdom of the Tathāgata.