人们的生活是微妙的；如果不承担深刻改变它们的风险，您就无法干预它们。偶然的说法，粗心的参与，可能会使幸福的生活与一种悲伤之间的区别
(People's lives are delicate; you cannot interfere with them without running the risk of changing them profoundly. A chance remark, a careless involvement, may make the difference between a life of happiness and one of sorrow)