In De docta ignorantia (1440), Nicholas of Cusa argued that the infinite cannot be measured by the finite mind, so that the highest wisdom is to know that one does not know, a learned ignorance. Approached in this way, God is found beyond the coincidence of opposites.
Learned ignorance
Nicholas of Cusa’s teaching that the highest knowledge of God is the knowing of one’s ignorance.
Also: docta ignorantia