Every material has its own memory and history.

我不是神，但我也不是普通人。

知识的真正方法是实验。

The world needs all forms of energy to meet growing demand, and natural gas is a cleaner alternative that can help bridge the gap.

真相很少纯粹，也绝不简单。

人之所以比禽兽尊贵，是因为人懂得“礼”啊。后人常用这句话说明“礼”在我们生活中的重要性。讲究“礼”，是有修养、有道德的表现。