A singular conception which occurs towards the end of the book is the lie
in the soul; this is connected with the Platonic and Socratic doctrine
that involuntary ignorance is worse than voluntary. The lie in the soul is
a true lie, the corruption of the highest truth, the deception of the
highest part of the soul, from which he who is deceived has no power of
delivering himself. For example, to represent God as false or immoral, or,
according to Plato, as deluding men with appearances or as the author of
evil; or again, to affirm with Protagoras that 'knowledge is sensation,'
or that 'being is becoming,' or with Thrasymachus 'that might is right,'
would have been regarded by Plato as a lie of this hateful sort. The
greatest unconsciousness of the greatest untruth, e.g. if, in the language
of the Gospels (John iv. 41), 'he who was blind' were to say 'I see,' is
another aspect of the state of mind which Plato is describing. The lie in
the soul may be further compared with the sin against the Holy Ghost (Luke
xii. 10), allowing for the difference between Greek and Christian modes of
speaking. To this is opposed the lie in words, which is only such a
deception as may occur in a play or poem, or allegory or figure of speech,
or in any sort of accommodation,--which though useless to the gods may be
useful to men in certain cases. Socrates is here answering the question
which he had himself raised (i. 331 C) about the propriety of deceiving a
madman; and he is also contrasting the nature of God and man. For God is
Truth, but mankind can only be true by appearing sometimes to be partial,
or false. Reserving for another place the greater questions of religion or
education, we may note further, (1) the approval of the old traditional
education of Greece; (2) the preparation which Plato is making for the
attack on Homer and the poets; (3) the preparation which he is also making
for the use of economies in the State; (4) the contemptuous and at the
same time euphemistic manner in which here as below (iii. 390) he alludes
to the _Chronique Scandaleuse_ of the gods.
* * * * *
[Sidenote: _Republic III._ Analysis.]