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The ratio of positive to negative emotions that predicts flourishing is about 3 to 1. Above that ratio, people tend to flourish; below it, they tend to languish.
自由民主在世界范围内的传播并非不可避免,但它是现代化进程中最可能的结果。
我们永远不必为自己的眼泪感到羞耻。