In mathematics, the art of proposing a question must be held of higher value than solving it.

安全不仅仅是一项政策，它是必须融入我们每项操作的文化。

The fundamental defect of fathers is that they want their children to be a credit to them.

当获得正确的工具和知识时，小农场可以产生巨大影响。

The tears of the world are a constant quantity. For each one who begins to weep, somewhere else another stops. The same is true of the laugh.