The rise of critical thinking in Greece’s early philosophy can be traced back to the earliest written literature of ancient Greece, with the works of the epic poets Hesiod and Homer. Critical thinking was not just limited to the logical philosophies of Plato and Aristotle of the classical age, nor with interpretation to the sixth century BCE natural philosophers’ empirical observations and theories.Through a comparative analysis of the themes and structures surrounding concepts of creation in the myths of Greece’s epic poems, with the theories of the early Presocratic natural philosophers, this paper proposes to pinpoint when ancient Greece’s formal critical reasoning began. It argues the Presocratic philosophers were the transition point from mythological thinking of Greece’s archaic age to the scientific reasoning of Greece’s classical age. However, the earlier epic poetry also employed this critical reasoning, which makes it Greece’s earliest instance of recorded critical reasoning. Both mediums of epic poetry and natural philosophy used critical reasoning to explain natural phenomena and justify human existence. Thus the early Greek thinkers employed critical reasoning in what were early quasi-scientific explanations for what they observed around them that were based on empirical observation and practice combined with logic and reasoning.
