 Several key issues in Luther’s work make him of interest to philosophers and not just theologians or Reformation historians, and will be covered in this entry: his conception of the relation between theology and philosophy, and the place of reason in that relation; his negative conception of Aristotle and the Aristotelian tradition, and his relation to the nominalist alternative; his conception of divine and human freedom; and his conception of ethics and of social and political life. Luther’s influence on subsequent philosophers in the Lutheran tradition is considered in more detail in the separate entry on   Luther’s influence on philosophy.