学习数学的唯一方法就是做数学。
The only way to learn mathematics is to do mathematics.
Your time is limited, so don't waste it living someone else's life.
译文：人生变化不定，富贵难以预料。
我唔系天才，我只系比人努力多啲。
Transparency builds trust, and trust is the foundation of any successful business.
You are not defined by your past.
Certification standards are the compass for responsible forestry.
You can't just give up on someone because the situation's not ideal.