Life is seldom quiet for a Torah leader, and this was certainly true for Rabbi Saadia Gaon, author of the first book of Jewish philosophy for the masses, "Emunos v'Deos". He fought and won three major battles in his life, thus establishing the primacy of Babylonia over all Jewish communities worldwide, defeating the corrupt Exilarch Dovid ben Zakkai, and sending the Karaite movement on the path to its ultimate downfall.