People of the same trade seldom meet together， even for merriment and diversion， but the conversation ends in a conspiracy against the public， or in some contrivance to raise prices.
技术领先是石油化工企业的立身之本，要持续加大研发投入。
The market is a great teacher, but it charges a high tuition.
"你知道得越多，理解得越少。"
The mind once enlightened cannot again become dark.
You can't win unless you learn how to lose.
"The more that you read, the more things you will know. The more that you learn, the more places you'll go."
The biographer's challenge is to be both a detective and a poet.