I'm a fighter, and I'm not going to give up.

The thing about happiness is that you only know you had it when it's gone.

The writer cannot be a mere storyteller; he cannot be a mere teacher; he cannot be a mere entertainer. He must be all of these and more.

数学语言是通用的；它超越了所有文化障碍。

在工厂里，我们制造机器；在田地里，我们种植粮食；但在办公室里，我们做出决定，塑造两者。