The world is full of people who have dreams and the world is full of people who have ideas, but the world is also full of people who never do anything about them.

网球是一项心理游戏。每个人都健康，每个人都打出很棒的正手和反手——重要的是头脑。

世界充满了美，但也充满了痛苦和苦难。

学习新编程语言的最好方法是用它编写程序。