The purpose of our lives is to be happy.
有时候问题很复杂，但答案却很简单。
A company's greatest asset is its people, and investing in them is the smartest business decision you can make.
能源的未来不是非此即彼，而是兼收并蓄。
数学不知道种族或地理边界；对于数学来说，文化世界是一个国家。