当你需要帮助的时候，你可以求助于自己的双手。
Remember, if you ever need a helping hand, you'll find them at the end of each of your arms.
心理学的任务是发现心理结构的规律。
生活其实很简单，但我们坚持把它复杂化。
"A book is a door, and every reader walks through it differently."
A mathematician is a device for turning coffee into theorems.
皮革行业必须进化，否则就有被淘汰的风险。