本书的大部分论文选自波普尔教授的文集In Search of aBetter World:Lectures and Essays from Thirty Years(Rout-ledge,London and New York,1992),实际上除了已分别收入Conjectures and Refutations(一篇是On the so-calledsources of knowledge,另一篇是Immanuel Kant:the philosopher of the Enlightenment,第三篇是Public opinion and liberal Principles)和Objective Knowledge(作为该书第4章的An objective theory of historical understanding)的四篇未选之外,该书的所有论文都汇集在此。我们特别感谢波普尔教授慨然允许我……去看看