Cusa grounded his Trinity argument in Qur’an-compatible ineffability first

Evidence

Cusa’s Trinitarian argument is polemically, and even speculatively, superior to anything that had gone before in the West, although he only re-used and refurbished arguments that he inherited. In chapters indebted for information to Ricoldo he takes a large view: he ‘explains’ the Trinity (mens, sctentia and voluntas ) but takes the trouble first to insist that there is both the mystical theology according to which God is ineffable, and which agrees directly with the Qur’an; and the affirmative theology which he then elaborates. — Norman Daniel, Islam and the West, 1545

Categorization

• XREF: Cusa’s strategy of finding common ground with an opponent’s sacred text before arguing parallels conflict-resolution and interfaith dialogue approaches in modern negotiation literature.