数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

自信源于内心，没有人能给你。

The only paradise is paradise lost.

Envy is a really stupid sin because it’s the only one you could never possibly have any fun at. There’s a lot of pain and no fun. Why would you want to get on that trolley?

如果购买普通股时工作做得正确，那么卖出它的时间几乎永远不会到来。

Every challenge in quarry operations is an opportunity to innovate and improve.

建筑是一种挑战，是对自我的挑战。