This course will briefly describe the main spirit and ideological content of the two major schools of philosophy that inherited their philosophy in ancient times after the death of Plato and Aristotle, and introduce the absorption and reference of Platonism to Aristotle, so that students can We know the richness and complexity of ancient philosophy. In addition to the great philosophers, there are also a group of philosophical scholars who have continued the ideas of the great philosophers and made great and small creative contributions. Students can learn about the rich layers of ancient thought, accumulate knowledge of the history of philosophy and interpret the ideological background of ancient philosophical issues.