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采石業(yè)的成功來自于效率與環(huán)境責(zé)任的平衡。

The preservation of the means of knowledge among the lowest ranks is of more importance to the public than all the property of all the rich men in the country.

要想找到自我，必須獨立思考。

技術(shù)要為產(chǎn)品服務(wù)。