Two people in love, alone, isolated from the world, that's beautiful.

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))。

Survival is not about being fearless. It’s about making a decision, getting on and doing it, because you have to.

预测未来的最好方法就是去创造它。

自由的新闻可以是好的也可以是坏的，但可以肯定的是，没有自由，新闻永远不会是好的。

选择最好的生活，因为习惯会使它愉快。

Life consists not in holding good cards，but in playing well those you hold.

In oil and gas, the companies that survive will be those that adapt fastest to the new realities of lower carbon demand.

The only defense against the world is a thorough knowledge of it.