生活是一场在不稳定舞台上表演的悲喜剧。

我不害怕死亡，我害怕不去尝试。

The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.

The most important thing is to retain your identity and not try to be something you're not.

In mathematics, the journey from question to answer is often more enlightening than the answer itself.

唯一的限制是你为自己设定的限制。