1. Metaphysic

Metaphysics is the branch of philosophy investigating principles of reality transcending those of any particular science. Cosmology and ontology are traditional branches of metaphysics. It is concerned with explaining the ultimate nature of being and the world. The word derives from the Greek words meta meaning "beyond" or "after" and physika (meaning "physical"), "physical" referring to those works on matter by Aristotle in antiquity. The prefix meta- ("beyond") was attached to the chapters in Aristotle's work that physically followed after the chapters on "physics", in posthumously edited collections. Aristotle called some of the subjects treated there "first philosophy."