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"The greatest wisdom lies in understanding that we know nothing at all."

Never use a credit card for credit. The only kind of credit， or debt， that is acceptable is debt to acquire something whose exchange value is extremely likely to increase， like in a home. The exchange value of most things diminishes or vanishes the moment you purchase them. Don’t be in debt to losers.

計(jì)算機(jī)科學(xué)的終極目標(biāo)是創(chuàng)建既強(qiáng)大又可靠的系統(tǒng)。

In computer science, we often have to deal with systems that are too complex to understand all at once.

沉默是最強(qiáng)大的回答。