I'm not going to let anyone take away my happiness.
A good abstraction is one that emphasizes the important details and suppresses the unimportant ones.
Mathematics is the art of giving the same name to different things.
我们要做的是让每一个中国人都能开上自己国家生产的汽车。
我认为目标永远不应该容易,它们应该迫使你努力,即使当时让你感到不舒服。