A healthy animal is the foundation of a healthy food chain.
佛教中有一句话：初学者的心态：拥有初学者的心态是件了不起的事情。
The most formidable weapon against errors of every kind is reason.
世界是一个舞台，每个人都是演员。
没人会和你自己一样对你所拥有的东西印象深刻。（Morgan Housel《金钱心理学》里面的一句话，可以理解为禀赋效应：即，由于情感上的偏见，人们在自己已经拥有的东西上比尚未获得的东西拥有更大的价值）
C is quirky, flawed, and an enormous success.
The spread of liberal democracy around the world is not inevitable, but it is the most likely outcome given the alternatives.