Originally published: Amsterdam: H. J. Paris, 1933.

In the 12th century the "Book of the Soul" by the philosopher Avicenna was translated from Arabic into Latin. It had an immense success among scholastic writers

This book provides the Latin text and its annotated English translation of the question-commentary of John Buridan (ca. 1300-1360) on Aristotle’s “On the So

From Plato’s Timaeus onwards, the world or cosmos has been conceived of as a living, rational organism. Most notably in German Idealism, philosophers still ta