统计学的最终目标是从数据中提取信息。
Travel changes you. As you move through this life and this world you change things slightly， you leave marks behind， however small. And in return， life—and travel—leaves marks on you.
A true leader listens more than they speak, and acts with integrity above all else.
The only way to do great work is to love what you do.
天也有喜怒哀乐的情感，与人类的情感是相通的。
A philosophical problem has the form: 'I don't know my way about.'