"And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected."
每本书都是一次旅程，每次旅程都可能成为一本书。
出自北齐·颜之推《颜氏家训·勉学》。博士：指学识渊博的人。一个学识渊博的人打算去买一头驴，可是写了三页纸也没有见到一个“驴”字。这句话常用来讽刺文章文辞繁冗、不得要领、苍白空洞。