The way we see things is affected by what we know or what we believe.
The most important thing is to focus on the user and all else will follow.
In mathematics, the art of proposing a question must be held of higher value than solving it.
敢于在古人成就面前一争高低,这是有志气;在今人的成绩面前不虚心,这是没有气量。
The sustainable development of the coal industry requires the coordinated efforts of policy, technology, and the market.
I'm not a product of my environment. My environment is a product of me.