In the first place, scenery and dramatic form belong to what is external. Plato gives to his Dialogues a setting of reality, both as regards place and persons, and chooses out some particular occasion which has brought his characters together; this in itself is very natural and charming. Socrates takes the leading part, and among the other actors there are many stars well known to us, such as Agathon, Zeno, and Aristophanes. We find ourselves in some particular spot; in the Phædrus (p. 229 Steph.; p. 6 Bekk.) it is at the plane tree beside the clear waters of the Ilyssus, through which Socrates and Phædrus pass; in other dialogues we are conducted to the halls of the gymnasia, to the Academy, or to a banquet. By never allowing himself to appear in person, but putting his thoughts always in the mouth of others, any semblance of preaching or of dogmatizing is avoided by Plato, and the narrator appears just as little as he does in the History of Thucydides or in Homer. Xenophon sometimes brings himself forward, sometimes he entirely loses sight of the aim he had in view, of vindicating by what he tells of them the life of Socrates and his method of instruction. With Plato, on the contrary, all is quite objective and plastic; and he employs great art in removing from himself all responsibility for his assertions, often assigning them even to a third or fourth person. As regards the tone of the intercourse between the characters in these Dialogues, we find that the noblest urbanity of well-bred men reigns supreme; the Dialogues are a lesson in refinement; we see in them the _savoir faire_ of a man acquainted with the world. The term courtesy does not quite express urbanity; it is too wide, and includes the additional notion of testifying respect, of expressing deference and personal obligation; urbanity is true courtesy, and forms its real basis. But urbanity makes a point of granting complete liberty to all with whom we converse, both as regards the character and matter of their opinions, and also the right of giving expression to the same. Thus in our counter-statements and contradictions we make it evident that what we have ourselves to say against the statement made by our opponent is the mere expression of our subjective opinion; for this is a conversation carried on by persons as persons, and not objective reason talking with itself. However energetically we may then express ourselves, we must always acknowledge that our opponent is also a thinking person; just as one must not take to speaking with the air of being an oracle, nor prevent anyone else from opening his mouth in reply. This urbanity is, however, not forbearance, but rather the highest degree of frankness and candour, and it is this very characteristic which gives such gracefulness to Plato’s Dialogues.