对叶蜚声先生，我该称他为“先生”或“老师”，因为无论从道德、学问和年龄、资历哪一方面来说，都应该如此。但是我长期叫他“老叶”，成了习惯，如今改不了口了，这也并非没有原因。我１９６０年本科毕业分配时，填志愿表，第一志愿是“助教”，但却分配当研究生，是因为我 For Mr. Yeh, I call him “Mr.” or “Teacher,” because this should be the case in terms of morality, learning, age, and seniority. However, I have long called him “old leaf” and became a habit. Now I can not change my mouth. This is not without reason. When I graduated in 1960, I filled in a volunteer form. The first choice was “teaching assistants.” But I was assigned as a graduate student because I