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The Langlands program is a challenge to our understanding of the nature of mathematical truth.
The path to clean energy begins with making current practices cleaner.
解析:主张统治者不应推崇贤能,不使人民争夺名位;不珍贵难得的财物,不使人民偷盗;不显耀足以引起贪心的事物,使民心不被扰乱。