动作是完整思考过程的最后一部分，精神的提升必须借助于活动或工作。

The key to trading success is to have a clear plan and stick to it.

畜牧业的每一个挑战都是创新的机会。

I'm not a master, I'm a slave.

The most important skill for an economist is the ability to think clearly about trade-offs.

心灵不是要填满的容器，而是要点燃的火焰。