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The obligation of subjects to the sovereign is understood to last as long, and no longer, than the power lasteth by which he is able to protect them.
数学家的工作大多是孤独的追求,但也具有深刻的合作性。
诗歌的语言是一种探索的语言,而不是交流的语言。
The best economic research is often interdisciplinary.