We should realize that a city is better off with bad laws, so long as they
remain fixed, then with good laws that are constantly being altered, that
the lack of learning combined with sound common sense is more helpful than
the kind of cleverness that gets out of hand, and that as a general rule,
states are better governed by the man in the street than by intellectuals.
These are the sort of people who want to appear wiser than the laws, who
want to get their own way in every general discussion, because they feel that
they cannot show off their intelligence in matters of greater importance, and
who, as a result, very often bring ruin on their country.
- -- Cleon, Thucydides, III, 37 translation by Rex Warner