心灵是一个可以在多个层次上分析的复杂系统。

The knowledge that you have emerged wiser and stronger from setbacks means that you are, ever after, secure in your ability to survive. You will never truly know yourself, or the strength of your relationships, until both have been tested by adversity. Such knowledge is a true gift, for all that it is painfully won, and it has been worth more than any qualification I ever earned.

Gunpowder is not just a tool of destruction, it can also be a medium for creation. 火药不仅是破坏的工具，它也能成为创造的媒介。

技术将继续彻底改变我们开采和利用天然气的方式。

The coal industry must evolve to meet modern environmental standards, or it will become obsolete.

I'm a person who likes to be unique.

Investors should be wary of anyone who claims to have a secret formula for beating the market.

心理学的方法必须严格经验化。