Plato (c. 427–347 B.C.), Greek philosopher. Socrates, in Phaedrus, sect. 275.
Recounting the response of the Egyptian god Thamus to Theuth's invention of letters, Socrates continued, "You are providing for your disciples a show of wisdom without the reality. For, acquiring by your means much information unaided by instruction, they will appear to possess much knowledge, while, in fact, they will, for the most part, know nothing at all; and, moreover, be disagreeable people to deal with, as having become wise in their own conceit, instead of truly wise."