You start a question, and it’s like starting a stone. You sit quietly on the top of a hill; and away the stone goes, starting others; and presently some bland old bird (the last you would have thought of) is knocked on the head in his own back garden and the family have to change their name.

你提出一个问题，就像推下一块石头。你安静地坐在山顶，石头却一路滚下，带动别的石头；转眼间，某个和气的老家伙——你最不会想到的那个人——就在自家后花园被砸中了脑袋，全家只得改名换姓。