1, Republic: written by Plato. Plato is one of the most famous philosophers in ancient Greece. In his book, he put forward three conditions for a just city-state, that is, the ruler is talented and fairly elected, and he must have certain philosophical knowledge to live a commune life.
2. Historical research: The author is Toynbee. In this historical work, the author considers mankind as a whole, and shows many courses of human civilization history from a macro perspective, just like a fascinating historical picture.
3. A Theory of Justice: The author is john rawls. Regarding justice, the author provides classic reference principles, namely, the principle of equality and freedom, the principle of difference and the principle of equal opportunity.