Socrates. He would be a very simple person… who should leave in writing or receive in writing any art under the idea that the written word would be intelligible or certain; or who deemed that writing was at all better than knowledge and recollection of the same matters?
Phaedrus. That is most true.
Socrates. I cannot help feeling, Phaedrus, that writing is unfortunately like painting; for the creations of the painter have the attitude of life, and yet if you ask them a question they preserve a solemn silence.
(Plato, Phaedrus - translated by B. Jowett)