谭老师是我大学的老师。有天他骑自行车驮儿子上街玩,见到一个年轻人陪一位老人在散步。儿子指着老人问:“那老头儿是谁呀?”谭老师告诉他:“是年轻人的爸爸”。不料,儿子却反问道:“他就是爸爸呀,都长胡子了?”谭老师讲的故事已三十多年了,现在他的儿子已经有了儿子。可谭老师讲的这个故事却总在我脑海里浮现,让我一直在思考一个问题:一个人对事物的概念是怎样形成的? Tan teacher is my university teacher. One day he was riding a bike to take a stroll to the streets and saw a young man walking with an old man. The son pointed to the old man and asked: “Who is that old man?” “Tan told him:” Young man’s father. “ Unexpectedly, the son actually asked: ”He is my father ah, are long beard?“ ”Tan teacher told the story for more than thirty years, and now his son has a son. However, this story that Tan teacher can tell always emerges in my mind, so I have been thinking about a question: how does the concept of a person form things?