Moses ben Joshua

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Moses ben Joshua, also known as Moses of Narbonne, Maestro Vidal Blasom, and Moses Narboni, was a medieval Catalonian philosopher and physician. He was born at Perpignan at the end of the thirteenth century and died sometime after 1362. He began studying philosophy with his father when he was thirteen and then studied with Moses and Abraham Caslari. He studied medicine and eventually became a successful physicians, and was well versed in Biblical and rabbinical literature.

Eventually he travelled to Spain, where he is known to have lived and studied in Toledo, Soria, and Valencia. During the outbreak of the Black Death when persecution of Jews was widespread, ben Joshua was forced to flee Cervera when an angry mob attacked the Jewish community there.

Moses was an admirer of Averroes; he devoted a great deal of study to his works and wrote commentaries on a number of them. Perhaps ben Joshua's best know work is his "Treatise on the Perfection of the Soul."

He believed that Judaism was a guide to the highest degree of theoretical and moral truth. In common with others of his era he believed that the Torah had both a simple, direct meaning accessible to the average reader as well as a deeper, metaphysical meaning accessible to thinkers. He rejected the belief in miracles, instead believing they could be explained, and defended man's free will by philosophical arguments.

He died at an advanced age as he was returning to his native land from Soria.

[edit] Known writings

"Perush mi-Millot ha-Higgayon," on the terminology of Maimonides' "Guide for the Perplexed"
a commentary on the "Guide for the Perplexed"
"Ma'amar Alexander be-Sekel," supercommentary on Averroes' commentary on Alexander of Aphrodisias' work on the intellect
a commentary on Averroes' "middle" commentary on Aristotle's "Physics"
a commentary on Averroes' paraphrase of the "Organon"
a commentary on the fourth part of Avicenna's "Canon"
a commentary on Ghazali's "Maḳaṣid al-Falasifah"
"Iggeret 'Al-Shi'ur Ḳomah," a mystical letter on the "Shi'ur Ḳomah," attributed to the high priest Ishmael
a commentary on the Book of Lamentations
a commentary on Averroes' treatise on the hylic intellect and the possibility of conjunction
"Shelemut ha-Nefesh," a collection of Aristotle's and Averroes' writings on the soul
a commentary on Averroes' dissertation on physics and on the treatise "De Substantia Orbis"
"Ketab Ḥai ben Yaḳẓan," commentary on the philosophical novel of Ibn Ṭufail
"Oraḥ Ḥayyim," a treatise on medicine
"Ma'amar bi-Beḥirah," a treatise on free will written in refutation of Abner of Burgos
a commentary on Averroes' commentary on the "De Cœlo et Mundo"
a treatise on metaphysics
"Pirḳe Mosheh," philosophical aphorisms
"Iggeret Meyuḥedet," on Ibn Ezra's commentary on Genesis 11:2