This project was initiated in 2002 and, although it was completed three years later it must be considered as a work in progress: since it is presented on-line at our website, new entries can always be added. Entries cover some of the fundamental concepts of ethics, political philosophy and philosophy of law. Each one corresponds to a historical sinopsis plus a discussion of the status questionis. Most of this type of dictionaries are based on a separation between politics, ethics or moral philosophy. But this project presupposes that in relation to some these major concepts this can not be done: concepts like autonomy, justice, liberty or power are some of the best examples of that artificial division. The final result of this program may result in a book, depending on the dynamics of new contributors and identifying new relevant issue meanwhile articles are on-line and its number will increase in the near future.