Plato Phaedrus 275a-e

from http://classics.mit.edu/Plato/phaedrus.html

Socrates: ...for this discovery of yours [writing] will create forgetfulness in the learners' souls, because they will not use their memories; they will trust to the external written characters and not remember of themselves. The specific which you have discovered is an aid not to memory, but to reminiscence, and you give your disciples not truth, but only the semblance of truth; they will be hearers of many things and will have learned nothing; they will appear to be omniscient and will generally know nothing; they will be tiresome company, having the show of wisdom without the reality. ...

Phaedr. You mean the living word of knowledge which has a soul, and of which written word is properly no more than an image?

Soc. Yes, of course that is what I mean. And now may I be allowed to ask you a question: Would a husbandman, who is a man of sense, take the seeds, which he values and which he wishes to bear fruit, and in sober seriousness plant them during the heat of summer, in some garden of Adonis, that he may rejoice when he sees them in eight days appearing in beauty? at least he would do so, if at all, only for the sake of amusement and pastime. But when he is in earnest he sows in fitting soil, and practises husbandry, and is satisfied if in eight months the seeds which he has sown arrive at perfection?

Phaedr. Yes, Socrates, that will be his way when he is in earnest; he will do the other, as you say, only in play.

Soc. And can we suppose that he who knows the just and good and honourable has less understanding, than the husbandman, about his own seeds?

Phaedr. Certainly not.

Soc. Then he will not seriously incline to "write" his thoughts "in water" with pen and ink, sowing words which can neither speak for themselves nor teach the truth adequately to others?

Phaedr. No, that is not likely.

Soc. No, that is not likely-in the garden of letters he will sow and plant, but only for the sake of recreation and amusement; he will write them down as memorials to be treasured against the forgetfulness of old age, by himself, or by any other old man who is treading the same path. He will rejoice in beholding their tender growth; and while others are refreshing their souls with banqueting and the like, this will be the pastime in which his days are spent.