"Where historians try to come to grips with a period which has left surviving eyewitnesses, two quite different concepts of history clash, or, in the best of cases, supplement each other: the scholarly and the existential, archive and personal memory. For everyone is a historian of his or her own consciously lived lifetime inasmuch as he or she comes to terms with it in the mind – an unreliable historian from most points of view, as anyone knows who has ventured into ‘oral history’, but one whose contribution is essential. Scholars who interview old soldiers or politicians will have already acquired more, and more reliable, information about what happened from print and paper, than their source has in his or her memory, but may nevertheless misunderstand it. And, unlike, say, the historian of the crusades, the historian of the Second World War can be corrected by those who, remembering, shake their head and tell him or her: ‘But it was not like that at all.’ Nevertheless, both the versions of history which thus confront one another are, in different senses, coherent constructions of the past, consciously held as such and at least potentially capable of definition."