Does he hold it out as a real possibility ? or must it be considered a failure in some way or that if the dialogue does end in failure ? what can we learn from that?

他是否坚持真有可能性,或那必需被多少视为是一项失败,如果对话以失败结束,我们又能从中学到什么？

耶鲁公开课 - 政治哲学导论课程节选