一本书是一面镜子:如果傻瓜往里看,智者也无法从中看出什么。
真正的发现之旅不在于寻找新的景观,而在于拥有新的眼光。 
Marxian Socialism must always remain a portent to the historians of Opinion — how a doctrine so illogical and so dull can have exercised so powerful and enduring an influence over the minds of men, and, through them, the events of history.