Antisthenes
(c.445–c.360 bc)A devoted follower of Socrates, but also considered (e.g. by Diogenes Laertius) to be an important influence on the first famous Cynic, Diogenes of Sinope. He shared much of Socrates' ...
form and matter
In Aristotelian thought, the structure or nature that is imposed upon undifferentiated materia prima to make the different kinds of substance in the world. See also hylomorphism, matter.
Heraclitus
(c.500 bc),Greek philosopher. He believed that fire is the origin of all things and that permanence is an illusion, everything being in a (harmonious) process of constant change.
