"We use history to understand ourselves, and we ought to use it to understand others. If we find out that an acquaintance has suffered a catastrophe, that knowledge helps us to avoid causing him or her pain. (If we find that they have enjoyed great good luck, that may affect how we treat them in another way!) We can never assume that we are all the same, and that is as true in business and politics as it is in personal relations. How can we understand the often passionate feelings of French nationalists in Quebec if we do not know something about the past that has shaped and continues to shape them? Or the mixture of resentment and pride that formerly poor provinces such as Alberta and Newfoundland feel toward central Canada now that they have struck oil? In international affairs, how can we understand the deep hostility between Palestinians and Israelis without knowing something of their tragic conflicts?"