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【释义】:积累千万财富,不如掌握一门技艺。  
In mathematics, you don't understand things. You just get used to them.
最好的书是那些让你感觉不那么孤独的书。
我不会让过去拖累我,我会让它推动我前进。
真相往往是复杂的,而谎言则总是简单的。
Productive thinking is characterized by the sudden appearance of the solution as an insight.