剑鞘保护剑的锋利，自己却满足於它自己的迟钝。

In the world of the internet, the most important thing is to focus on the customer experience.

The most powerful tool in science is not technology, but imagination.

因为我们的粉丝，每场演唱会都感觉像是第一次。

煤炭企业要主动适应能源结构调整，加快转型升级。

The idea that we will make a society where literally everybody is graded, the good at the top, bad at the bottom, exactly done as it should be, is impossible. There are simply too many random factors: accidents, accidents of birth, accidents of things dropping on people's heads, illnesses, etc. We will never get to grade them, never get to grade people as they should.