Short-term gains should never come at the expense of long-term sustainability.
短期收益永远不应以牺牲长期可持续性为代价。
组合数学就像是不用实际计数的计数艺术。
钱财地位，往往成为丛集怨恨的渊薮；才华能力，常常就是招致灾祸的根由；名望声誊，往往成为引来毁谤的媒介；欢欣快乐，常常就是走向悲凉的开始。
The purpose of education is not to fill the minds of students with facts but to teach them to think.
教育的目的不是用事实填满学生的头脑，而是教会他们思考。
The price of greatness is responsibility.