皮革的真正成本不在价格标签上，而是以节约的水资源、保护的生态系统和公平对待的工人来衡量。

The biggest flex is being comfortable in your own skin.

Disciplining yourself to do what you know is right and important, although difficult, is the highroad to pride, self-esteem, and personal satisfaction.

"The quest for efficient algorithms is a journey through the landscape of mathematical possibility."

对称性不仅是自然的一种属性，而且是寻找物理定律的指导原则。