Run by Plato, the Academy was the center of Greek learning. Aristotle
spent twenty years there and owes a great deal of his life's work
to this formative influence.
A self-governing political unit that is sometimes under
the power of an overseeing nation, as Athens was in Greece.
Aristotle's classification of the kinds of causes that
a natural philosopher must investigate: 1) the constituent factor;
2) the form or pattern; 3) the immediate origin; and 4) the end
For Aristotle, the good life required community participation, for
man was incomplete otherwise. Since reason and language are what
set man apart from the other animals, he must exercise them in
a public forum to live a fulfilling life.
The rival school that Aristotle set up after he returned
to Athens. While the Academy continued to thrive on mostly mathematical courses
of study, Aristotle's school, the Lyceum, focused more on biology
and natural history. It was here that Aristotle wrote most of his
A substance that underlies the real attributes of the
A syllogism consists of certain assumptions or premises
from which a conclusion can be deduced. The syllogism was the basic element
on which Aristotle's logical system rested.
The consideration of natural ends or purposes in
The first cause of all motion that is itself unmoved.
Aristotle extended this natural science concept to his theology,
arguing that the Unmoved Mover was equivalent to God. The being
is perfect and eternal but does not take an interest in the world.