He came to know God, that is, not by way of undoubted and self-evident truths but by the way of truths and opposing truths, by way of ‘’a coincidence of opposites.’’ These are two essential parts of insight, ‘’a learned ignorance’ (coincidentia oppositorum), as if the light of God to us were darkness and the presence of God to us were absence. I shall take these watchwords, ‘’a learned ignorance’’ and ‘’coincidence of opposites,’’ as we try to come to a similar insight by entering into the darkness that is my own unseeing, by entering into the absence that is my own unfeeling.

The House of Wisdom John S. Dunne University of Notre Dame Press 1993 (page 47)