孙振平给我讲过这么一件事，还是在上小学的时候，由于家境贫寒，他从来没有请同学吃过什么东西，有一次，他对同学许诺说要请他们吃冰棍，回家后他犯愁了，不知怎么向母亲开口。母亲知道这件事后，语重心长地对他说：“孩子，你以后一定要记住，不要轻易对别人许你达不到的诺 Sun Zhenping told me such a thing, or in primary school, because of poor family, he never asked students to eat something, once, he promised to students that they want to eat popsicles, go home after he was worried I do not know how to open my mother. After the mother knew it, she said to him in earnest: "Children, you must remember later, do not let others promise you unfulfilled promise