一个人早在孩提时代，就已接受过朦胧的“无限”思想．晚上，当孩子看见满天星星时，常会情不自禁地问妈妈：“天上的星星有多少？”妈妈会告诉孩子，天上的星星数不清．由“数不清”到“数不尽”，孩子一步步跨向“无限”的门槛．进入小学和中学后，无限以各种形式向学生们提? A person had already accepted the “unlimited” thoughts as early as he was a child. In the evening, when the child sees the stars, he often can't help but ask his mother, “How many stars are there in the sky?” The mother will tell the children that the number of stars in the sky is not clear. From “unclear” to “countless”, the child step by step to the threshold of “infinity”. After entering primary and secondary schools, I will be inviting to students in various forms.