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我们都在寻找某种东西,即使我们不知道它是什么。
We are all searching for something, even if we don't know what it is.
学习是系统中产生的任何变化,这些变化或多或少会永久性地改变其适应环境的能力。
The state is the most important institution in human history.
Sustainability isn't a trend—it's the future of business.