This anthology brings together the most important works of three Jewish philosophers of the Middle Ages. Selections of the writings of Philo of Alexandria, edited with an introduction by Hans Lewy; Saadya Gaon's Book of Doctrines and Beliefs, abridged, introduced and translated from the Arabic by Alexander Altmann; and Yehuda Halevi's influential Kuzari, abridged and with an introduction and commentary by Isaak Heinemann, with a selection of Halevi's poetry. All educated students of Jewish thought should be familiar with these seminal writers.