1, parmenides of Plato in ancient Greece: "It seems that whether they exist or not, whether other things exist or not, they all appear to exist to themselves or between them in the way and style of everything."

2. Plato's Republic in ancient Greece: Justice means doing just things in a country. When each individual only does one kind of work related to the country, and this kind of work is most suitable for his nature, the country will have justice.

3. Plato's "Drinking" in ancient Greece: All this lies in the primitive character of human beings: we are originally complete, and the hope and pursuit of that integrity is called making love.

4. Minos of Plato in ancient Greece: Etiquette involves our way of life, and the "good and evil" of our soul is closely related to our "eternal happiness". Without knowing what the law is, it is impossible to make a good law. A political community without good laws is obviously not a "happy" community.

5. Plato's "The Wise Man" in ancient Greece: A wise man is a person who teaches the children of rich families by collecting money, and also a person who sells goods imitated by his own heart. They are really ignorant, but they pretend to have knowledge to deceive young people.