For humanists the perfect language was a revived Classical Latin. For scholastics it was a practical logic adapted to the needs of education. Though they have long been portrayed as arch rivals, Alan Perreiah here argues that humanists and scholastics were working in complementary ways toward some of the same goals: most significantly, the early modern search for the perfect language. The study advances research on language pedagogy in the Renaissance by clarifying the connections between truth and translation.