premise: They , too , can read and write , of course , but their solecisms , barbarisms , and vulgarisms call for rebuke , and what better rebuke than to treat them as if they did not belong at all'to condemn them figuratively to the outer darkness of the unlettered ?
hypothesis: They can read and write , but they are n't exactly polished , so we treat them as poorly as those who ca n't read and write and true is true .