做人最紧要开心，唔开心就冇意思。

"The only thing we can be sure of about the future is that it will be different."

一个好的数学家是能看到定理之间类比的人；一个伟大的数学家是能看到类比之间的类比的人。

We must balance economic growth with environmental stewardship.

Sustainability isn't just a trend—it's a responsibility we owe to future generations.