It is Impossible to Keep Up with New Knowledge

No man's model of reality is a purely personal product. While some of his images are based on firsthand observation, an increasing proportion of them today are based on messages beamed to us by the mass media and the people around us. Thus the degree of accuracy in his model to some extent reflects the general level of knowledge in society. And as experience and scientific research pump more refined and accurate knowledge into society, new concepts, new ways of thinking, supersede, contradict...