种树的最佳时间是20年前。第二好的时间就是现在。

「释义」：坚守志向要像心痛发作，全神贯注在痛处，哪还有心思闲聊多事？

The most elegant proofs are those that reveal the heart of the problem with clarity.

To write is to make the invisible visible.

The difference between an adventure and an ordeal is attitude.

We should learn from international leaders while developing our own path.

最高的道德不是遵循道德，而是实现道德与幸福的统一。

The absurdity of life doesn't make it meaningless, but rather gives it a special kind of meaning.

只有通过观察自己的行为，你才能发现自己真正相信什么（而不是你认为自己相信什么）。在此之前，你根本不知道自己相信什么。你太复杂了，无法理解自己。