The Ancient Greek, Aristotle, laid the foundations of Western knowledge and his effect on philosophy and the sciences was to last over 2000 years until the Renaissance. His life was not always so successful. He was tutor to the headstrong young Alexander the Great, and later had to flee for his life from Athens. This series of guides cover the lives and ideas of the major philosophers. The author's concise and comprehensible style highlights the major advances in philosophy, as well as the men who conceived them and the times in which they lived. Containing quotes, insights and anecdotes, the aim of this series is to clarify the mysteries of philosophy for the general reader.