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There is no friend as loyal as a book.
最危险的敌人往往是我们自己。
当你开始考虑如果你输了你会做什么的那一刻,你就已经输了。
If we don’t do something now, the world our children inherit will be much poorer than the one we were given.
Every mathematical problem is a window into a deeper understanding of the world.
能源的未来不在于燃烧过去,而在于用明天的创新为现在提供动力。