Raymond Lully

Ramon Llull (Catalan: [rəˈmon ˈʎuʎ]; c. 1232 – possibly 25 March 1315/1316), was a philosopher, theologian, poet, missionary, Christian apologist and former knight from the Kingdom of Majorca.

He invented a philosophical system known as the Art, conceived as a type of universal logic to prove the truth of Christian doctrine to interlocutors of all faiths and nationalities. The Art consists of a… More