Ancient Philosophy

Major sub-fields of academic philosophy include:

metaphysics ("concerned with the fundamental nature of reality and being"),^[24] epistemology (about the "nature and grounds of knowledge [and]...its limits and validity" ^[25]⁾,

ethics,

aesthetics,

political philosophy,

logic,

philosophy of science and

the history of Western philosophy.

Since the 20th century professional philosophers contribute to society primarily as professors, researchers and writers.

However, many of those who study philosophy in undergraduate or graduate programs contribute in the fields of:

law,

journalism,

politics,

religion,

science,

business and

various art and entertainment activities.^[26]