“And what does this question Why imply? It implies (...) dissatisfaction, disquiet, a sense that all is not well. In a state of perfect contentment there would be no need or room for this irritant little word. History begins only at the point where things go wrong; history is born only with trouble, with perplexity, with regret. So that hard on the heels of the word Why comes the sly and wistful word If. If it had not been for … If only … Were it not … Those useless Ifs of history.”