lǐzhì
理為所觀之道理，智為能觀之智慧，彼此冥合，稱為覺悟。即依理生智依智顯理也。不思議疏下曰：「秘秘中秘釋者，本不生理自有理智，自覺本不生故。」 智有二種，有漏諸智謂之事智，無漏智謂之理智。見俱舍論十八。
Principle and gnosis (or reason); the noumenal in essence and in knowledge; the truth in itself and in knowledge; liis also the fundamental principle of the phenomenon under observation,chihthe observing wisdom; one is reality, the other the knower or knowing; one is the known object, the other the knower, the knowing, or what is known; each is dependent on the other,chihdepends onli liis revealed bychih. Also knowledge or enlightenment in its essence or purity, free from incarnational influences.
reason; intellect; rationality
一理智 理乃所觀之道理，智乃能觀之智慧。真如之理與悟得此理之智慧相應，稱為理智相應。能觀之智與所觀之理一致者，稱為理智冥合。俱舍論卷十八列舉二種智，有漏諸智稱為事智，與之相對者為「理智」，即指無漏諸智。p5949
１．理是指所觀察的道理，智是指能觀察的智慧，理與智合一，便叫做覺悟。２．有漏智叫做事智，無漏智叫做理智。