Giannozzo Manetti (1396-1459) was a celebrated humanist orator, historian, philosopher, and scholar of the early Renaissance. Son of a wealthy Florentine merchant, he participated actively in the public life of the Florentine republic and embraced the new humanist scholarship of the quattrocento, oriented to the service of the state and the reform of religion. Mastering not only classical Latin but also Greek and Hebrew, he gained access to a whole library of sources previously unknown in the Latin West. Among the fruits of his studies is his treatise Against the Jews and the Gentiles,...