SOCRATES: Nor can we reasonably say, Cratylus, that there is knowledge
at all, if everything is in a state of transition and there is nothing
abiding; for knowledge too cannot continue to be knowledge unless
continuing always to abide and exist. But if the very nature of
knowledge changes, at the time when the change occurs there will be no
knowledge; and if the transition is always going on, there will always
be no knowledge, and, according to this view, there will be no one to
know and nothing to be known: but if that which knows and that which is
known exists ever, and the beautiful and the good and every other thing
also exist, then I do not think that they can resemble a process or
flux, as we were just now supposing. Whether there is this eternal
nature in things, or whether the truth is what Heracleitus and his
followers and many others say, is a question hard to determine; and no
man of sense will like to put himself or the education of his mind in
the power of names: neither will he so far trust names or the givers of
names as to be confident in any knowledge which condemns himself and
other existences to an unhealthy state of unreality; he will not
believe that all things leak like a pot, or imagine that the world is a
man who has a running at the nose. This may be true, Cratylus, but is
also very likely to be untrue; and therefore I would not have you be
too easily persuaded of it. Reflect well and like a man, and do not
easily accept such a doctrine; for you are young and of an age to
learn. And when you have found the truth, come and tell me.
CRATYLUS: I will do as you say, though I can assure you, Socrates, that
I have been considering the matter already, and the result of a great
deal of trouble and consideration is that I incline to Heracleitus.
SOCRATES: Then, another day, my friend, when you come back, you shall
give me a lesson; but at present, go into the country, as you are
intending, and Hermogenes shall set you on your way.
CRATYLUS: Very good, Socrates; I hope, however, that you will continue
to think about these things yourself.