一年多来身体不好,经常在家休养或住医院治疗。自辞去行政工作后,本想看点书,写点东西,但仍觉力不从心,记忆衰退,大堆材料卡片,无暇整理。友人曾来信约我写点回忆录及个人体会之类的东西:如一个科研领域或研究问题的演化,思路的变迁和技术的发展过程,以至于错误的经历、走过的弯路等等,这些都是老年人所能做的,对年青科研工作者也许有些帮助,再不然把它当作一个故事或一个笑话看看也好! More than a year in poor health, often at home or hospital treatment. After he left his administration, he wanted to read some books and write something. However, he still felt powerless, memory was sluggish, lots of material cards could not be arranged. Friends have written letters about memoirs and personal experiences like things like: the evolution of a research field or research question, the change of thinking, the development of technology, the erroneous experience, the detours you have taken, etc. It is something the older person can do that may be of some help to a young scientist, or treat it as a story or a joke!