Western Philosophers By DShoff27 Period: 300 to Apr 5, 600 600 BCE to 300 BCE 427 Plato Began as a student of Socrates 510 Parmenides (Pre-socratic) All of reality is made up of single, unchanging substance 560 Pythagoras Legendary Pre-socratic philosopher Mar 2, 2022 Thales (Pre-scoratic Philosopher) First Philosopher to Propose a Rational Explantion of the Natural World Mar 2, 2022 Socrates (end of pre-socratic philosophers) The life of Socrates Mar 2, 2022 Aristotle (the greatest or the most influential philosopher) First systematic philosophical thinker