Isaac Husik (Hebrew: יצחק הוזיק) (10 February 1876 – 22 March 1939) was a Jewish historian, translator, and student of philosophy, one of the first three individuals to serve as official faculty[1] at Gratz College in Philadelphia.Isaac received his early instruction from his father and from Sabato Morais, rabbi at the Sephardic congregation Kahal Kadosh Mikveh Israel in Philadelphia, and one of the founders of the Jewish Theological Seminary (JTS).Husik attended JTS while preparing for secular studies, and received direct guidance from Morais, but did not ultimately pursue a rabbinical career.Husik attended Central High School (Philadelphia), and then enrolled at the University of Pennsylvania, where he received a master's degree in mathematics in 1899.Like Julius Guttmann's Philosophies of Judaism, Husik's book offers rather thin treatment of mystical topics and thinkers, instead favoring the rational face of Jewish thought.