Abraham Joshua Heschel (January 11, 1907 – December 23, 1972) was a Polish-American rabbi and one of the leading Jewish theologians and Jewish philosophers of the 20th century. Heschel, a professor of Jewish mysticism at the Jewish Theological Seminary of America, authored a number of widely read books on Jewish philosophy and was a leader in the civil rights movement. Biography Abraham Joshua Heschel was born in Warsaw in 1907 as the youngest of six children of Moshe Mordechai Heschel and Reizel Perlow Heschel. He was descended from preeminent European rabbis on both sides of his family. His paternal great-great-grandfather and namesake was Rebbe Avraham Yehoshua Heshel of Apt in present-day Poland. His mother was also a descendant of Avraham Yehoshua Heshel and other Hasidic dynasties. His siblings were Sarah, Dvora Miriam, Esther Sima, Gittel, and Jacob. Their father Moshe died of influenza in 1916 when Abraham was nine. He was tutored by a Gerrer Hasid who introduced him to the thought of Rabbi Menachem Mendel of Kotzk. After a traditional yeshiva education and studying for Orthodox rabbinical ordination (semicha), Heschel pursued his doctorate at the University of Berlin and rabbinic ordination at the non-denominational Hochschule für die Wissenschaft des Judentums. There he studied under some of the finest Jewish educators of the time: Chanoch Albeck, Ismar Elbogen, Julius Guttmann, Alexander Guttmann, and Leo Baeck. His mentor in Berlin was David Koigen. Heschel later taught Talmud at the Hochschule. He joined a Yiddish poetry group, Jung Vilna, and in 1933, published a volume of Yiddish poems, Der Shem Hamefoyrosh: Mentsch, dedicated to his father. In late October 1938, when Heschel was living in a rented room in the home of a Jewish family in Frankfurt, he was arrested by the Gestapo and deported to Poland in the Polenaktion. He spent ten months lecturing on Jewish philosophy and Torah at Warsaw's Institute for Jewish Studies. Six weeks before the German invasion of Poland, Heschel left Warsaw for London with the help of Julian Morgenstern, president of Hebrew Union College, who had been working to obtain visas for Jewish scholars in Europe and Alexander Guttmann, later his colleague in Cincinnati, who secretly re-wrote his ordination certificate to meet American visa requirements. Heschel's sister Esther was killed in a German bombing. His mother was murdered by the Nazis, and two other sisters, Gittel and Devorah, died in Nazi concentration camps. He never returned