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International politics is a brutal and dangerous business, and it is likely to remain that way.
释义:为人处事,不可任由自己的心性,说话也应谨慎,不能随便发表言论。
All things are interconnected; the world is an endless web.
The truth is, the world is so constructed that if you wish to enjoy its fruits, you must submit to its rules.
世界需要科学,科学也需要世界。
The multiverse is not a theory, but a prediction of certain theories.