礼义法度，是随着时势而变化的。

Change is certain. Peace is followed by disturbances; departure of evil men by their return.

The laws of physics are not just rules, they are the language of the universe.

欲望是人的本质。

在旧制度下，努力工作意味着长时间工作、很少休息和低工资。在新制度下，它意味着公平的工作换取公平的报酬。