Just be yourself. There is no one better.

Change is hard, but it is necessary for progress.

解释：才华有高下之分，没有古今之别；文章有真实、虚伪之差，没有新旧之异。

Simplicity is the ultimate sophistication.

人生苦短，必须快乐。

In the end, we are all alone, and that is the fundamental condition of human existence.