Moutsopoulos is the author of philosophical works in 59 volumes, in Greek, French and English. Quite a number have also appeared translated into various languages.
His research in the fields of systematic philosophy and the history of
philosophy led him to the construction, foundation and introduction of five new philosophical branches: the
philosophy of weather; the
philosophy of art (in a regenerated sense); the
philosophy of Greek civilization; the
history of Neohellenic philosophy; and the
philosophy of the cosmic space. He has also studied the
philosophy of music, a contribution reinforced by his creativity in music.
He was repeatedly acclaimed with honorary
doctor’s degrees and other distinctions. He participated in hundreds of international congresses abroad. In 1966 he created the
Corpus Philosophorum Graecorum Recentiorum (CPGR), a work incorporated in the activities of the Foundation for the Research and Editions of Neohellenic Philosophy (1975). He is the founder and president of the international philosophical periodical
Diotima. In 1984 the
Academy of Athens entrusted him with the general supervision of the periodical
Philosophia, the year-book of the Academy’s Center for the Research of Greek Philosophy.