因此，国家并非自古以来就存在。曾经有一些社会没有国家，对国家或国家权力毫无概念。在一定的经济发展阶段，这必然与社会分裂成阶级有关，国家变成了一种必要性。

"The more you experience, the more you learn, and the more you learn, the better you get."

The mind can be considered as a physical symbol system.

A company's culture is the foundation of its success. Without a strong culture, even the best strategy will fail.

文学应该作为文学来评判，而不是作为社会文献。