What is the source of wisdom of traditional philosophy?

Laozi, Plato, Zhuangzi, modern Hegel. Objectively speaking, the history of western philosophy is the root of the history of modern philosophy, and Laozi and Zhuangzi are the foundation of being a man after China's entry into WTO. Western learning focuses on the understanding of thinking. There is no clear boundary between eastern philosophy and religious theology. Whether you believe in yourself or not, you are almost not free. They have their essence and their dross, which must be treated dialectically.