REVIEW I.: "In my view, this book represents an important turning point in terms of the methodology of our work and should serve as a model for our research, as it can be an important source of inspiration and give [our scholarship] a new lease of life." -- Jean-Francois Gerkens, Zeitschrift der Savigny-Stiftung fr Rechtsgeschichte, 2021.(Translated from French)REVIEW II.: "The general reader will be impressed by the depth and rigour of the scholarship presented here and will find interest in the wide-ranging explanation of views on the development of causation issues resulting from a Roman controversy." -- Graeme Cunningham, The Cambridge Law Journal, 2021.