文学要么具有颠覆性，要么就不该存在。

煤炭行业必须进化，否则有过时的风险。适应是生存的关键。

"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."

质量不是承诺；它是一种交付。