"'isn't it brimstone morning?' 'I forgot, my dear,' rejoined Squeers; 'yes, it certainly is. We purify the boys' bloods now and then, Nickleby.' 'Purify fiddlesticks' ends,' said his lady. 'Don't think, young man, that we go to the expense of flower of brimstone and molasses, just to purify them; because if you think we carry on the business in that way, you'll find yourself mistaken, and so I tell you plainly. ...They have the brimstone and treacle, partly because if they hadn't something or other in the way of medicine they'd be always ailing and giving a world of trouble, and partly because it spoils their appetites and comes cheaper than breakfast and dinner. So, it does them good and us good at the same time, and that's fair enough I'm sure.'"