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Mathematics is a collaborative endeavor. No one does it alone.
数学是一项协作的努力。没有人可以单独完成。
如果一个人行为不端正,内心不纯洁,那么权势和富贵都会像云烟一样消散。
Acting is a way to explore the complexities of the human condition.
International politics is a brutal and dangerous business, and it is likely to remain that way.