艺术是社会的一面镜子，但它也可以是一把塑造社会的锤子。

The context is so important. The context is not just the physical context, but also the historical and cultural context.

Mathematics is the most beautiful and most powerful creation of the human spirit.

In computing, the mean time to failure keeps getting shorter.

If a problem cannot be solved， enlarge it.

【原文】叶公问政。子曰：“近者说，远者来。”【译文】叶公问怎样为政。孔子说：“使近处的人民感到喜悦幸福，使远处的人民来投奔归附。”