The ratio of positive to negative emotions that predicts flourishing is about 3 to 1. Above that ratio, people tend to flourish; below it, they tend to languish.

"The world is a book, and those who do not travel read only one page."

译文：祖国沉沦每个人都有责任，我在天涯漂泊没有家。

企业的成功不是靠机会，而是靠能力。

The challenge in computer graphics is to simulate the complexity of the real world with the simplicity of mathematical models.