知识的积聚通常有两个渠道：一曰更新，一曰温故。在今天，前者已经很容易被人们接受，“知识爆炸”啦，“第×次浪潮”啦，“大趋势”啦，“更替”、“换代”啦，名目繁多；后者的情形有些不同，除了孔夫子那句“温故而知新”的名言偶尔有人提起，事实上人们对温故之道并不重? The accumulation of knowledge usually has two channels: one is called update, the other one is called it. Today, the former is already easily accepted by people. The “knowledge explosion”, the “x wave”, the “big trend”, the “replacement” and the “replacement” have many names. The latter are somewhat different in circumstances, In addition to Confucius’s phrase, “Wen Guzhi learned new” quotation Occasionally, some people mention, in fact, people are not the cause of the old way?