Since his first public appearance in the late 1590s, Shylock has been synonymous with antisemitism. Many of his bon mots remain common currency among Jew-haters; among them "3000 ducats" and the immortal "pound of flesh". But Shakespeare, being Shakespeare, was incapable of inventing anyone so uninteresting; instead he affords Shylock such ambiguity that some of his other lines have become keynotes for believers in shared humanity and tolerance...