统计学家的目标是从样本中推断出总体是什么。
The time is always right to do what is right.
我不完美，但我始终是我自己。
成功唔系终点，失败亦唔系末日。
Simple can be harder than complex: You have to work hard to get your thinking clean to make it simple.
Power is not a tool, it is a relationship. It exists between people, not within them.