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The study of mathematics is the indispensable basis for all intellectual and spiritual progress.
Nature is the greatest teacher and I learn from her best when others are asleep.
"The past is always tense, the future perfect."
释义:善于把握事物本质的人,不会违背金属和水的本性;善于制作器物的人,不会改变物体的形状和用途。
Out of my own great woe I make my little songs.