Each monad reflects the perspective of the entire universe, but with varying depth and clarity.

The challenge for modern states is to maintain their legitimacy while also being effective in providing services and maintaining order.

You don't have to be great to start, but you have to start to be great.

To understand the electron is to understand the foundation of our technological civilization.

最重要的是不断学习和适应。

解释：情绪变化会影响身体生理反应，如贪心时口水增多，悲哀时流泪，体现了情绪与健康的关联。