出自汉·桓宽《盐铁论·险固》。则,就。有所准备就能先发制人,没有准备就只能受制于人,处处被动挨打。这句话言做事处世“有备无患”的重要性。
生活中闲言碎语在所难免,不必过分在意,做好自己即可。  
"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."