The best performance improvement is the transition from the nonworking state to the working state.

I’m not afraid. I’m focused.

In mathematics, truth is always relative to the system you're working in.

The key to progress is persistence and curiosity.

没有孩子的民族将面临无望的未来；没有树木的国家将面临更加无望的未来。

每个人都会有一次迷失自我。重要的是如何从中恢复。