For an excerpt of Sefer Hakuzari, try Three Jewish Philosophers, by Hans Lewy (Editor), Alexander Altmann (Editor), Isaak Heinemann (Editor). The style is a bit archaic but does a fair job excerpting Kuzari, Philo, and Saadiah Gaon, This is a reprint of earlier editions.
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Moshe Yeres
Rabbi Dr. Moshe J. Yeres, B.A., M.A., Ph.D.
Principal, Jewish Studies
The Anne & Max Tanenbaum Community Hebrew Academy of Toronto
TanenbaumCHAT Wallenberg Campus