人们不买你做什么，他们买你为什么做。
统计学家不能推卸理清科学推断原理的责任，同样，任何其他思考者也必须承担类似的义务。
Great leaders don't create followers; they create more leaders.
No matter how good you get you can always get better, and that's the exciting part.
The world is before you and you need not take it or leave it as it was when you came in.