If any one believes this to be needless alarm, let him think a moment. Government by the people must ever rest upon the people's ability to govern themselves, upon their intelligence and public spirit. The slum stands for ignorance, want, unfitness, for mob-rule in the day of wrath. This at one end. At the other, hard-heartedness, indifference, self-seeking, greed. It is human nature. We are brothers whether we own it or not, and when the brotherhood is denied in Mulberry Street we shall look vainly for the virtue of good citizenship on Fifth Avenue. When the slum flourishes unchallenged in the cities, their wharves may, indeed, be busy, their treasure-houses filled,--wealth and want go so together,--but patriotism among their people is dead. As long ago as the very beginning of our republic, its founders saw that the cities were danger-spots in their plan. In them was the peril of democratic government. At that time, scarce one in twenty-five of the people in the United States lived in a city. Now it is one in three. And to the selfishness of the trader has been added the threat of the slum. Ask yourself then how long before it would make an end of us, if let alone. Put it this way: you cannot let men live like pigs when you need their votes as freemen; it is not safe.[2] You cannot rob a child of its childhood, of its home, its play, its freedom from toil and care, and expect to appeal to the grown-up voter's manhood. The children are our to-morrow, and as we mould them to-day so will they deal with us then. Therefore that is not safe. Unsafest of all is any thing or deed that strikes at the home, for from the people's home proceeds citizen virtue, and nowhere else does it live. The slum is the enemy of the home. Because of it the chief city of our land came long ago to be called "The Homeless City." When this people comes to be truly called a nation without homes there will no longer be any nation. [Footnote 2: "The experiment has been long tried on a large scale, with a dreadful success, affording the demonstration that if, from early infancy, you allow human beings to _live_ like brutes, you can degrade them down to their level, leaving them scarcely more intellect, and no feelings and affections proper to human hearts."--_Report on the Health of British Towns._]