举凡私人日记,多带有天然的隐秘性,若非知音知已,是不肯轻易示人的。连亲生父母未经得儿女同意都无权窥看,遑论公诸社会呢!然而从学者角度看,日记公开的认知价值又是不容轻视与取代的。有人从《鲁迅日记》记其交往的“流水账”中,了解到所处时代的经济状况、生活水平乃至稿酬标准;从《朱自清日记》记载的经济收入、友人饭局、个人疾 Give private diary, with more of the natural secrecy, if the unknown known to know, is not easy to show people. Even biological parents have no right to glimpse without the consent of their children, let alone to the public! However, from a scholar’s point of view, the cognitive value of diary openness can not be ignored and replaced. Some people from the “Lu Xun Diary” remember its association “running account ”, understand the economic status of the times, living standards and even remuneration standards; from the “Diary of Zhu Ziqing” recorded in the economic income, friends dinner, personal illness