Every book is the wreck of a perfect idea.
Every tree planted today is a promise to tomorrow.
Remember that reputation and integrity are your most valuable assets—and can be lost in a heartbeat.
记住声誉和正直是你最宝贵的资产并且可能在一瞬间消失。
可持续性不仅仅关乎环境；它关乎为所有利益相关者创造持久价值。
我从不认为任何事情是理所当然的。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.