You may well ask why I write. And yet my reasons are quite many. For it is not unusual in human beings who have witnessed the sack of a city or the falling to pieces of a people to set down what they have witnessed for the benefit of unknown heirs or of generations infinitely remote; or, if you please, just to get the sight out of their heads.

Part One, Ch. I (p. 5) - The Good Soldier (1915)