安全生产是矿业企业的生命线，必须常抓不懈。

The Langlands program is not a static set of conjectures but a dynamic field of research.

Efficiency without ethics is a path to failure.

水产养殖技术必须兼顾生产力和地球，我们不能为了一个牺牲另一个。

The best stories are those that mix the happiness and sadness of life together in the right proportions.

内省的方法必须严格控制。