Thomas Aquinas was first and foremost a Christian theologian. Yet he was also one of the greatest philosophers of the Middle Ages. Drawing on classical authors, and incorporating ideas from Jewish and Arab sources, he came to offer a rounded and lasting account of the origin of the universe and of the things to be found within it, especially human beings.

It is well known that Aristotle’s Metaphysics presents historians with many problems of literary history. The fourteen books of "first philosophy" available today did not originally form one single work which Aristotle himself planned and authored. This work as we have it is rather the result of a compilation after its author’s death. His disciples have joined together different writings which reflect their master’s teaching at different points in his career. Consequently, historians are confronted with problems of chronology, both absolute (...) and relative, with respect to each of the parts they distinguish in our version of the Metaphysics. One’s understanding of Aristotle’s thought and of the development of his teaching depends in large part on the solution to these problems. (shrink)