Dialectical point of view,error is not terrible,sigh,sad,fear is not.Error failure with truth,with success,like the sleep is bound up with the night awake,the same as the dawn.A man from the wrong " dream" in the wake,will with new wisdom and strength to the truth.Through the darkness of failure,it indicates that the success of the dawn.Hagel said:" the mistake itself but to truth is an inevitable part of "," because of this error,the truth will appear ".People's knowledge,ability and creation,not only in summing up the successful experience,also in the lessons of failure is produced.David spoke about his success,he said:" I am the main discovery is affected by the failure of inspiration and make.“
用辩证的观点来看,错误并不可怕,叹息、感伤、畏惧是大可不必的.错误同真理,失败同成功,像睡梦同清醒、黑夜同黎明一样紧密相联.一个人从错误的“梦”中醒来,就会以新的智慧和力量奔向真理.经历着失败的黑夜,正预示了成功的黎明即将来临.黑格尔说过：错误本身乃是“达到真理的一个必然的环节”,“由于这种错误,真理才会出现”.人们的知识、能力以至发明创造,并不单单是在总结成功经验,也是在汲取失败教训的基础上产生出来的.戴维谈到自己获得成功,就说过：“我的那些最主要的发现是受到失败的启示而作出的.”