一个故事应该有开头、中间和结尾，但不一定按这个顺序。

The pharmaceutical industry has a moral obligation to put patients first.

The biggest risk is not taking any risk. In a world that is changing quickly, the only strategy that is guaranteed to fail is not taking risks.

The single biggest problem in communication is the illusion that it has taken place.

教师必须具有健康的体魄，农人的身手，科学的头脑，艺术的兴味，改革社会的精神。