有人说:“爱哭的孩子,长大后聪明;不爱哭的长大以后可能是傻瓜。”这种说法是缺乏科学根据的。是否爱哭,与聪明、愚笨并不存在什么必然的联系。幼儿长大以后是否聪明,是遗传因素和环境因素共同作用的结果。遗传因素是智力发展的物质前提,环境因素(包括社会历史条件、教育和主观努力等)是智力发展的最重要条件。没有后者,再好的遗传基础也是没有用的。一个自幼就同环境隔绝的人,是不会有任何知识和才能的。十 Some people say: “crying child, grow up clever; do not cry to grow up later may be a fool. ” This argument is a lack of scientific basis. Whether crying, and clever, stupid does not exist any necessary contact. Whether or not a child is smart after growing up is the result of a combination of genetic and environmental factors. Genetic factors are material prerequisites for intellectual development. Environmental factors (including social and historical conditions, education and subjective efforts, etc.) are the most important conditions for intellectual development. Without the latter, even the best genetic basis is useless. A person who has been isolated from the environment since childhood has no knowledge or talent. ten