The advantages found in history seem to be of three kinds， as they result either from the mere situation of the climate and country or from the form of government and of the character of the people， or from those finer principles and morals， which may be called the recommendations of philosophy.

地球是一个宇宙个体，是宇宙中独一无二的存在。

水产养殖的创新不仅关乎技术，更在于重新思考我们与海洋的关系。