Philosophy is an esoteric subject that involves many different philosophers and ideas. It was very important for a beginner in philosophy to choose which philosopher's book to read. If you want to understand philosophy better, you should read the books of the ancient Greek philosophers, Plato and aristotle. The ideology of Platonism emphasized rationality and truth, while the ideology of Orthodoxy emphasized ethics and politics. Their ideas and works had a profound impact on the development of philosophy and were one of the classics of philosophy. If you want to study modern philosophy, you should read the books of the German philosopher Kant. Kant's thoughts emphasized reason and free will. His Critiques of Pure Reason and Critiques of practical reason were classic works in the history of philosophy. Of course, these were just some examples. There were many philosophers in the field of philosophy, and everyone's ideas and works had their own unique value and contributions. Therefore, those who were new to philosophy could choose books that suited their interests and needs.