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生存的关键是准备。了解你的环境并为任何事情做好准备。
With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how.
I'm not a language, I'm a sound.
地球是一个圆点。月亮是一个圆点。太阳是一个圆点。星星是圆点。
The happiness of society is the end of government.