Part I. Foundations. Early sources : Stoic and Christian -- Canonistic jurisprudence -- Part II. Thirteenth-century theologians. Parisian masters -- Thomas Aquinas -- Part III. Fourteenth-century variations. William of Ockham -- Marsilius of Padua -- Johannes Andreae -- Part IV. Indifferent things : Adiaphora in the church. Reformation Adiaphora : Lutherans and Anglicans -- Richard Hooker -- Part V. Natural law and international law : Suarez and Grotius. Francisco Suarez -- Hugo Grotius -- Part VI. For and against : Selden, Pufendorf, and some critics. John Selden -- Samuel Pufendorf -- Critics of Pufendorf : Barbeyrac and Burlamaqui -- Part. VII. Natural law and the German enlightenment. Wolff to Kant -- Immanuel Kant : permissive law and property