GersonidesLevi ben Gershon (1288 – 20 April 1344), better known by his Graecized name as Gersonides, or by his Latinized name Magister Leo Hebraeus, or in Hebrew by the abbreviation of first letters as RaLBaG, was a medieval French Jewish philosopher, Talmudist, mathematician, physician and astronomer/astrologer. He was born at Bagnols in Languedoc, France. According to Abraham Zacuto and others, he was the son of Gerson ben Solomon Catalan. As in the case of the other medieval Jewish philosophers little is known of his life.
NachmanidesMoses ben Nachman (מֹשֶׁה בֶּן־נָחְמָן Mōše ben-Nāḥmān, "Moses son of Nachman"; 1194–1270), commonly known as Nachmanides (nækˈmænᵻdiːz; Ναχμανίδης Nakhmanídēs), and also referred to by the acronym Ramban (ˌrɑːm'bɑːn; ) and by the contemporary nickname Bonastruc ça Porta (ˌbɔnəsˈtɾuk sə ˈpɔrtə; literally "Mazel Tov near the Gate", see astruc), was a leading medieval Jewish scholar, Catalan rabbi, philosopher, physician, kabbalist, and biblical commentator. He was raised, studied, and lived for most of his life in Girona, Catalonia.
PhilosophyPhilosophy (love of wisdom in ancient Greek) is a systematic study of general and fundamental questions concerning topics like existence, reason, knowledge, values, mind, and language. It is a rational and critical inquiry that reflects on its own methods and assumptions. Historically, many of the individual sciences, like physics and psychology, formed part of philosophy. But they are considered separate academic disciplines in the modern sense of the term.