I n every city there is a district which is called “tough” — a district which decent people, afraid of insult or theft, shun in both daylight and darkness. It is there that the overworked police grow callous to the everlasting complaints and brawls. In one such community, by the grace of a country whose proud boast is a free education to all, is a public school. And in this public school are teachers who daily work against the heavy odds of vice and miserable ignorance which have been piling up year after year or generation after generation. But vice…