理无常是，事无常非。
释义：圣人治理天下，不是改变百姓本性，而是顺应天性加以引导。
始终跟随趋势交易。
Every great novel is a journey into the unknown, both for the writer and the reader.
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.