1814: Savigny against Codification.Volksgeist and the customary origin of every form of law.Aporia: how could Roman Law be customary?.Against Roman Law: the Germanists refuse the « law of Professors ».The real meaning of the contrast: liberal individualism vs. social corporatism.An example: Possession (Herzog 213):- Good faith, titulus, res habilis;- Exclusion of possession of rights.