科学(Science)一词，源于拉丁文Scientia，意思是“认识”或“知识”。实际在西方一些国家，Ciencia一词也用来表示近代科学。不管怎样，在相当长的历史阶段，人们把科学看作是自然哲学。牛顿的例子就很能说明问题，他把一些惊人见解如万有引力定律和运动三定律收入书中，这本 The word science, derived from the Latin Scientia, means “knowledge” or “knowledge.” In fact, in some western countries, the term Ciencia is also used to indicate modern science. Anyway, for a long period of history people regarded science as natural philosophy. Newton's example is very illustrative of the problem. He took some surprising insights, such as the law of universal gravitation and the law of motion, into the book