BOOK II. Thrasymachus is pacified, but the intrepid Glaucon insists on
continuing the argument. He is not satisfied with the indirect manner
in which, at the end of the last book, Socrates had disposed of the
question ‘Whether the just or the unjust is the happier.’ He begins by
dividing goods into three classes:—first, goods desirable in
themselves; secondly, goods desirable in themselves and for their
results; thirdly, goods desirable for their results only. He then asks
Socrates in which of the three classes he would place justice. In the
second class, replies Socrates, among goods desirable for themselves
and also for their results. ‘Then the world in general are of another
mind, for they say that justice belongs to the troublesome class of
goods which are desirable for their results only. Socrates answers that
this is the doctrine of Thrasymachus which he rejects. Glaucon thinks
that Thrasymachus was too ready to listen to the voice of the charmer,
and proposes to consider the nature of justice and injustice in
themselves and apart from the results and rewards of them which the
world is always dinning in his ears. He will first of all speak of the
nature and origin of justice; secondly, of the manner in which men view
justice as a necessity and not a good; and thirdly, he will prove the
reasonableness of this view.
‘To do injustice is said to be a good; to suffer injustice an evil. As
the evil is discovered by experience to be greater than the good, the
sufferers, who cannot also be doers, make a compact that they will have
neither, and this compact or mean is called justice, but is really the
impossibility of doing injustice. No one would observe such a compact
if he were not obliged. Let us suppose that the just and unjust have
two rings, like that of Gyges in the well-known story, which make them
invisible, and then no difference will appear in them, for every one
will do evil if he can. And he who abstains will be regarded by the
world as a fool for his pains. Men may praise him in public out of fear
for themselves, but they will laugh at him in their hearts (Cp.
Gorgias.)