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科学发现的真正本质不在于它提供的答案,而在于它提出的新问题。
矿业必须以可持续发展为核心进化,否则我们可能被淘汰。
The natural effort of every individual to better his own condition, when suffered to exert itself with freedom and security, is so powerful a principle that it is alone, and without any assistance, not only capable of carrying on the society to wealth and prosperity but of surmounting a hundred impertinent obstructions with which the folly of human laws too often encumbers its operations.
Common sense is not so common.