Philip Melanchthon (1497-1560), humanist and colleague of Martin Luther, is best known for his educational reforms, for which he earned the title Praeceptor Germaniae (the Teacher of Germany). His most influential form of philosophical writing was the academic oration, and this volume presents a large and wide-ranging selection of his orations and textbook prefaces, many of which are here translated into English for the first time. They address subjects as diverse as moral philosophy, astronomy and mathematics, and illuminate the relationship between Renaissance and Reformation thought.