The beauty of mathematics lies in its ability to describe the universe in the most abstract terms.
When you lend somthing pretend you are gifting. If it is returned， you'll be surprised and happy
从来没有人有过这样的朋友，如此深情，如此忠诚，如此娴熟。
Our minds are not designed to cope with the anonymity of modern urban life.
主动管理在成本前是负和游戏，在成本后是输家的游戏。
Sustainability isn't an option anymore—it's a necessity for survival.
街头教给我的比任何学校都多。