States are inherently aggressive and expansionist because they exist in an anarchic international system where there is no higher authority to keep them in check.

Farmers are the original environmentalists—they understand the land better than anyone.

成功是团队的努力，没有人能独自成就伟大。

You must not think that what is hard for you to master is humanly impossible； and if it is humanly possible， consider it to be within your reach.

儿童的一切教育都必须遵循一个原则，即帮助孩子身心自然的发展。

我们鱼类的健康反映了我们水域的健康，它们是不可分割的。