The dialogue hardly derives any light from Plato’s other writings, and
still less from Scholiasts and Neoplatonist writers. Socrates must be
interpreted from himself, and on first reading we certainly have a
difficulty in understanding his drift, or his relation to the two other
interlocutors in the dialogue. Does he agree with Cratylus or with
Hermogenes, and is he serious in those fanciful etymologies, extending
over more than half the dialogue, which he seems so greatly to relish?
Or is he serious in part only; and can we separate his jest from his
earnest?—_Sunt bona, sunt quaedum mediocria, sunt mala plura_. Most of
them are ridiculously bad, and yet among them are found, as if by
accident, principles of philology which are unsurpassed in any ancient
writer, and even in advance of any philologer of the last century. May
we suppose that Plato, like Lucian, has been amusing his fancy by
writing a comedy in the form of a prose dialogue? And what is the final
result of the enquiry? Is Plato an upholder of the conventional theory
of language, which he acknowledges to be imperfect? or does he mean to
imply that a perfect language can only be based on his own theory of
ideas? Or if this latter explanation is refuted by his silence, then in
what relation does his account of language stand to the rest of his
philosophy? Or may we be so bold as to deny the connexion between them?
(For the allusion to the ideas at the end of the dialogue is merely
intended to show that we must not put words in the place of things or
realities, which is a thesis strongly insisted on by Plato in many
other passages)...These are some of the first thoughts which arise in
the mind of the reader of the Cratylus. And the consideration of them
may form a convenient introduction to the general subject of the
dialogue.
We must not expect all the parts of a dialogue of Plato to tend equally
to some clearly-defined end. His idea of literary art is not the
absolute proportion of the whole, such as we appear to find in a Greek
temple or statue; nor should his works be tried by any such standard.
They have often the beauty of poetry, but they have also the freedom of
conversation. “Words are more plastic than wax” (Rep.), and may be
moulded into any form. He wanders on from one topic to another,
careless of the unity of his work, not fearing any “judge, or
spectator, who may recall him to the point” (Theat.), “whither the
argument blows we follow” (Rep.). To have determined beforehand, as in
a modern didactic treatise, the nature and limits of the subject, would
have been fatal to the spirit of enquiry or discovery, which is the
soul of the dialogue...These remarks are applicable to nearly all the
works of Plato, but to the Cratylus and Phaedrus more than any others.
See Phaedrus, Introduction.