A philosophy is a comprehensive system of ideas about human nature and the
nature of the reality we live in. It is a guide for living, because the issues
it addresses are basic and pervasive, determining the course we take in life and how we treat other people.
The topics that philosophy addresses fall into several distinct fields. Among
those of fundamental concern are:
Metaphysics (the theory of reality).
Epistemology (the theory of knowledge)
Ethics (the theory of moral values)
Politics (the theory of legal rights and government)
Aesthetics (the theory of the nature of art)