Quality is not a task; it is a responsibility.
A long habit of not thinking a thing wrong, gives it a superficial appearance of being right.
经济学不仅仅是预测行为，更是塑造行为。
光勤劳是不够的，蚂蚁也是勤劳的。要看你为什么而勤劳。
In the realm of algorithms, efficiency and elegance are not mutually exclusive but are often two sides of the same coin.