"Nell," the Constable continued, indicating through his tone of voice 
that the lesson was concluding, "the difference between ignorant and educated 
people is that the latter know more facts. But that has nothing to do with 
whether they are stupid or intelligent. The difference between stupid and 
intelligent people—and this is true whether or not they are 
well-educated—is that intelligent people can handle
subtlety. They are not baffled by ambiguous or even contradictory 
situations—in fact, they expect them and are apt to become suspicious 
when things seem overly straightforward.