无论什么理论都是针对大多数人和事物的。在物理学和其他精密科学中 ,理论的意义得到了很好的阐释。在艺术和人文科学领域 ,有许多理论带有个人色彩 ,而不具有普遍性。在图书馆情报学中 ,几乎没有一种公认的理论。然而 ,无论人们是否认为图书情报学需要有严格的理论基础 ,人们 No matter what the theory is for most people and things. The meaning of theory is well illustrated in physics and other precision sciences. There are many theories in the arts and humanities that are personal but not universal. There is almost no universally accepted theory in library information science. However, no matter whether people think that library and information science needs to have a rigorous theoretical basis, people