The more you're actively and practically engaged, the more successful you will feel.

欲求新，则求变。欲求完美，求常变。

The reason for time is so that everything doesn't happen at once.

We don't stop playing because we grow old; we grow old because we stop playing.

煤炭的未来取决于我们创新和减少其环境影响的能力。

快乐的最好方法是放下你无法控制的事情。