"One must defeat their prejudices. What I demand you here is almost impossible, for we have to defeat our history. And yet, if we do not defeat it, one must know a rule will impose itself, ladies and gentlemen: nationalism is war! War is not only our past, it may be our future; and you members of parliament are henceforth the guardians of our peace, of our security, and of this future."
January 1, 1970
https://en.wikiquote.org/wiki/Fran%C3%A7ois_Mitterrand