Mariano Crespo, researcher of project 'Natural Law and Rationality internship' of the Institute for Culture and Societyhas translated Hans Reiner's book Fundamentos, principio y normas particulares del derecho natural -degree scroll original Grundlagen, Grundsätze und Einzelnormen des Naturrechts (1964) - into Spanish . The volume is part of the Opuscula Philosophica collection of Editions meeting.

Hans Reiner is considered one of the major representatives of phenomenological value ethics in the 20th century. In this book he offers a new philosophical foundation for the theory of natural law. This theory is based on the peculiar determination of the essence of reason previously expressed by Max Scheler and also proposes a new consideration of the Platonic theory of the soul and a renewed interpretation of the Aristotelian conception of the just and justice.

Mariano Crespo's research focuses his work at the ICS on the study of the relationship between classical foundations of natural law and contemporary foundations of natural law, with a special focus on phenomenological thought.