我非常荣幸地应联合国教科文组织之邀介绍这些来自世界各地的、讨论科普问题的动人文章。科学及其产物——信息,肯定象人类一样古老。认识到他们已经获得某些有用知识的第一批人,必然是受一种欲望的驱使;他们要开发未来,要分类动植物和岩石,要更多地了解他们居处的地理、地质和生态,只要有助于想出寻找食物的方法,或有助于某些其他实用目的就行。他们还要把他们的观察结果——肯定努力使其尽可能清楚,尽可能简单——传授给他们所在群的其他成员,或许还要传授给相邻群的成员。那时,一定作过实验,留下了记 I am honored to be invited by UNESCO to introduce these moving articles from all over the world to discuss popular science issues. Science and its products - information, must be as old as human beings. The first people who recognize that they have acquired some useful knowledge must be driven by a desire to develop the future to classify animals and plants and rocks and to learn more about the geography, geology, and ecology of their settlement , As long as it helps to figure out ways to find food or to help with some other useful purpose. They would also like to put their observations - affirmatively trying to make them as clear and as simple as possible - to other members of their group, perhaps to members of neighboring groups. At that time, we must have experimented and left a note