In the midst of an age of prejudice, John Selden's immense, neglected rabbinical works contain magnificent Hebrew scholarship that respects, to an extent remarkable for the times, the self-understanding of Judaism. Scholars celebrated for their own broad and deep learning gladly conceded Selden's superiority and conferred on him titles such as "the glory of the English nation" (Hugo Grotius), "Monarch in letters" (Ben Jonson), "the chief of learned...