卡匹。听见了吗？卡匹。卡匹迪恩。抓紧时间，孩子们。让你的生命不同寻常。
The material is not just a skin, it’s the soul of the building.
Don’t take it personally when someone turns you down. Assume they are like you: busy， occupied， distracted. Try again later. It’s amazing how often a second try works.
我所有诚实的人。
Even in abstraction, mathematics has profound real-world applications.