" Historical knowledge is a technique of the first order to preserve and continue a civilisation already advanced. Not that it affords positive solutions to the new aspect of vital conditions- life is always different from what it was- but that it prevents us committing the ingenuous mistakes of other times. But if, in addition to being old and, therefore, beginning to find life difficult, you have lost the memory of the past, and do not profit by experience, then everything turns to disadvantage. Well, it is my belief that this is the situation of Europe. The most " cultured" people to-day are suffering from incredible ignorance of history. "