Glaukon undertakes to set forth the case against Sokrates, though professing not to agree with it _ib._ Pleading of Glaukon. Justice is in the nature of a compromise for all--a medium between what is best and what is worst 13 Comparison of the happiness of the just man derived from his justice alone, when others are unjust to him with that of the unjust man under parallel circumstances 14 Pleading of Adeimantus on the same side. He cites advice given by fathers to their sons, recommending just behaviour by reason of its consequences 15 Nobody recommends Justice _per se_, but only by reason of its consequences 16 Adeimantus calls upon Sokrates to recommend and enforce Justice on its own grounds, and to explain how Justice in itself benefits the mind of the just man 17 Relation of Glaukon and Adeimantus to Thrasymachus 18 Statement of the question as it stands after the speeches of Glaukon and Adeimantus. What Sokrates undertakes to prove _ib._ Position to be proved by Sokrates--Justice makes the just man happy _per se_, whatever be its results 20 Argument of Sokrates to show what Justice is--Assumed analogy between the city and the individual _ib._ Fundamental principle, to which communities of mankind owe their origin--Reciprocity of want and service between individuals--No individual can suffice to himself _ib._ Moderate equipment of a sound and healthy city--Few wants 22 Enlargement of the city--Multiplied wants and services. First origin of war and strife with neighbours--It arises out of these multiplied wants _ib._ Separate class of soldiers or Guardians. One man cannot do well more than one business. Character required in the Guardians--Mildness at home with pugnacity against enemies 23 Peculiar education necessary, musical as well as gymnastical 23 Musical education, by fictions as well as by truth. Fictions addressed to the young: the religious legends now circulating are often pernicious: censorship necessary 24 Orthodox type to be laid down: all poets are required to conform their legends to it. The Gods are causes of nothing but good: therefore they are causes of few things. Great preponderance of actual evil _ib._ The Guardians must not fear death. No terrible descriptions of Hades must be presented to them: no intense sorrow, nor violent nor sensual passion, must be recounted either of Gods or Heroes 25 Type for all narratives respecting men 26 Style of narratives. The poet must not practise variety of imitation: he must not speak in the name of bad characters _ib._ Rhythm and Melody regulated. None but simple and grave music allowed: only the Dorian and Phrygian moods, with the lyre and harp _ib._ Effect of musical training of the mind--makes youth love the Beautiful and hate the Ugly 27 Training of the body--simple and sober. No refined medical art allowed. Wounds or temporary ailments treated; but sickly frames cannot be kept alive 28