I've learned that you can't control everything, but you can control how you react to it.

The awful shadow of some unseen Power floats, though unseen, among us.

To read is to dream with open eyes.

No man's knowledge here can go beyond his experience.

Don't just follow the market—shape it.

Sustainability is not a choice; it's our responsibility to future generations.

从n对观测值的样本中获得的相关系数的可能误差是sqrt((1-r²)/(n-2))。

儿童是人类的创造者。