A wise man said: before you speak， let your words pass through three gates. At the first gate， ask yourself， "Is it true？" At the second gate， ask "Is it necessary？" At the third gate， ask， "Is it kind？"
The study of algorithms is as much about creativity as it is about logic and mathematics.
发现的喜悦是科学家们前进的动力。
The biggest room in the world is the room for improvement.