解释：了解古代不了解现在，称为愚昧无知，那么儒生就只能称作愚昧无知的人了。

You can’t do today’s job with yesterday’s methods and be in business tomorrow.

Green development is not a multiple-choice question, but a must-answer question. We must unswervingly follow the path of green and low-carbon development.

Faith is a living, daring confidence in God's grace, so sure and certain that a man could stake his life on it a thousand times.

【译文】穷人住在闹市也无人理睬，富人住在深山也会招来远房亲戚。有哪个人背后不被别人议论，哪个人在人前不议论他人?给钱就说真话，不给钱就不说真话。不信你到筵席上看看，哪杯酒不先敬有钱的人?热闹繁华的地方有钱可赚，偏僻幽静的地方宜于安身。