No man really knows about other human beings. The best he can do is to suppose that they are like himself.

Leadership is about making tough decisions today that will benefit generations tomorrow.

The mining industry must evolve with sustainability at its core, or we risk becoming obsolete.

农业现代化不是简单的机械化，而是要让农民真正掌握科技，用智慧种地。

可归约性的概念对于理解不同计算问题之间的关系至关重要。