 Nicholas’ most important philosophical works were written in the twenty-four years between the appearance of De docta ignorantia and his death. De coniecturis (1442–43), De dato patris luminum (1445), Apologia doctae ignorantiae (1449), Idiota de sapientia, Idiota de mente, Idiota de staticis experimentis (all 1450) were among important works of the decade from 1440–1450, as were many sermons and works on mathematics. The final fourteen years of his life saw the appearance of De visione Dei (1453), De beryllo (1458), De possest (1460), De li non aliud (1461), De ludo globi (1462–63), De venatione sapientiae (1462), Compendium (1464) and De apice theoriae (1464), more works on mathematics and many more sermons. Of particular note are two works he wrote during these years that reached out to other religions, especially Islam, De Pace Fidei (1453) and Cribatio Alchorani (1461).