沈克琦先生是我尊敬的师长,我在上大学三年级的时候,他带过我们班一年的光学实验课。沈先生在我毕业留校任教后的不同时期,担任过物理系和校级领导,以及中国物理学会副理事长等职务,期间多次安排和举荐我承担重要的教学任务、行政职责和社会工作。1958年我从苏联留学归国,他便亲自找我谈话,要我讲授物理类四个系二年级的普通物理课——电磁学和光学。这门课分两个大班,每班二三百人。北京大学物理系一贯重视基础课教学, Mr. Shen Keqi is my respected teacher, and when I was in my third year in college, he took a year of optical experiments in our class. During my various years after I graduated from the school, Mr. Shen served in the Department of Physics and at the university level as well as the vice president of the Chinese Society of Physics. During this period, he arranged and recommended me to undertake important teaching tasks, administrative duties and social work . When I returned from studying in the Soviet Union in 1958, he personally talked to me and asked me to teach four general physics classes in Physics, the second grade, electromagnetism and optics. This course is divided into two classes, two or three hundred people in each class. Peking University Department of Physics has always attached importance to basic teaching,