Description:The Spanish Jesuit Luis de Molina (1535–1600) was an important writer in the "School of Salamanca." The author examines the previously unresearched relationship between questions of legal metaphysics and legal practice in Molina. She grounds her interpretation of subjective law on a combination of Molina's metaphysics of will (Concordia, 1588) and his teachings on law (De Iustitia et Iure, 1593–1609) while focusing on the problem of slavery.