But before we examine the plan on which the decoration of this space has been built up, let us study the subject. It is usually called _Jurisprudence_, that is to say the principle of Law--both the making and the administering of laws. In the _Disputá_ the subject, as you remember, was _Religion_; in two of the other panels in this same room Raphael has represented _Philosophy_ and _Poetry_. Here he set himself to represent the idea of _Law_. The _idea_, you observe. In all these four panels, it is an idea, not an event or incident, that is represented; but an idea--something that has existence only in the mind. For all the subjects represent abstract ideas; ideas, that is to say, abstracted or removed from the experience of the senses. We cannot, for example, see religion or Law; nor touch, taste, smell, nor hear them. We can see the policeman on his beat, or the judge in court, or the members of the legislature--the men who, respectively, maintain, administer, and make the laws; and we can see the record of the laws in books. But the idea or principle of Law which has caused men to construct all this machinery for the making and enforcing of the laws, exists only in the mind.