Philosophy

Philosophy

http://en.wikipedia.org/wiki/Philosophy

Metaphysics

http://plato.stanford.edu/entries/metaphysics/

Fact in Philosophy

http://en.wikipedia.org/wiki/Fact

Early Greek Philosophy - What is the nature of reality?

http://en.wikipedia.org/wiki/Pre-Socratic_philosophy

Reality - The state of things as they actually exist.

http://en.wikipedia.org/wiki/Reality