不要担心你在数学上遇到的困难；我敢保证我遇到的困难比你还大得多。

Writing is about making something, not about expressing yourself.

Failure is the best teacher. You learn by making mistakes and figuring out how to correct them.

"每一本书都是一个新的世界，等待着读者去探索。"

生活是一本书，每一天都是新的一页。