517
It is a misfortune to pass at once from observation to conclusion, and to regard both as of equal value; but it befalls many a student.
518
In the history of science and throughout the whole course of its progress we see certain epochs following one another more or less rapidly. Some important view is expressed, it may be original or only revived; sooner or later it receives recognition; fellow workers spring up; the outcome of it finds its way into the schools; it is taught and handed down; and we observe, unhappily, that it does not in the least matter whether the view be true or false. In either case its course is the same; in either case it comes in the end to be a mere phrase, a lifeless word stamped on the memory.