贫困并非不可避免；它是一个可以解决的问题。

The pursuit of happiness is not about feeling good all the time, but about striving toward meaningful goals.

晏子春秋

The study of mathematics is the indispensable basis for all intellectual and spiritual progress.

Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.

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。

The future of energy lies in balancing economic growth with environmental stewardship.

最强大的艺术往往来自边缘。