When Alexander died in 323 B.C., Aristotle wisely retreated
to the pro- Macedonian base of Chalcis. He was reportedly trying
to save the Athenians from  sinning twice against philosophy (the
first sin being the execution of  Socrates). He died there in 322
of a disease of the digestive organs. Following  Socrates and Plato,
Aristotle had a great wealth of knowledge and wisdom to  build upon,
but he left no successor who could surpass him. His work changed
the  direction of Western learning and continues to play a very
real part in modern  studies. His work in the sciences would inevitably
become obsolete, particular  in natural philosophy. But his contributions
to biology would remain unsurpassed  for centuries. On the other
hand, his work in the humanities and social sciences  continues
to provide the basis for debate and guide academic learning. Moreover,
 he essentially created the field of logic and devised the syllogism.
The one  major subject that he did not seem to have a large impact
on was mathematics, on  which the Academy generally led the way.
Aristotle's talents showed both depth and variety. As
a scientist he was  endlessly scrupulous, always grounding his work
in observation to a much greater  extent than Plato had. Plato's
idealism culminated in his Theory of Forms, which  Aristotle flatly
rejected as empty language, for he preferred to deal with the  material
world. Beyond the skill of observation, he was also armed with keen
 insight, able to detect patterns and draw conclusions with discernment.
What drove Aristotle was a desire for wisdom, knowledge
for its own sake. He  sought what philosophers and scientists are
still seeking today: the fundamental  principles that govern humanity
and its universe. The pursuit has changed in  many ways, particularly
with specialization. No one today could have the all- encompassing
jurisdiction that Aristotle did, but even for his time, his success
 was remarkable. More than any single figure in Western history,
Aristotle was  the embodiment of knowledge and learning. His works
continue to provoke,  inspire, and inform.