为了惩罚我对权威的蔑视，命运使我自己也成为权威。

In mathematics, the simplest explanation is often the most profound.

Stay true to yourself and never let what somebody else says distract you from your goals.

对于系统，翻版的模拟是在控制图中添加一个创建循环的边，而不仅仅是一个附加节点。

因此，教学艺术无非是时间、科目和方法的巧妙安排。

In chemicals, our greatest challenge is also our greatest opportunity: meeting global needs while protecting the planet.

在困难中蕴藏着机会。

我们必须平衡能源发展与环境保护，实现可持续增长。