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数学的研究是所有智力和精神进步不可或缺的基础。
The study of mathematics is the indispensable basis for all intellectual and spiritual progress.
"Be yourself, everyone else is already taken."
It seemed the world was divided into good and bad people. The good ones slept better ... while the bad ones seemed to enjoy the waking hours much more.
History is not the past. It is the present. We carry our history with us. We are our history.