"A man who has taken an active part in the political life of a great city possesses an incalculable advantage over his fellow-citizens who have not so taken part, because normally he has more understanding than they can possibly have of the attitude of mind, the passions, prejudices, hopes, and animosities of his fellow-citizens, with whom he would not ordinarily be brought into business or social contact. Of course there are plenty of exceptions to this rule. A man who is drawn into politics from absolutely selfish reasons, and especially a rich man who merely desires to buy political promotion, may know absolutely nothing that is of value as to any but the basest side of the human nature with which his sphere of contact has been enlarged; and, on the other hand, a wise employer of labor, or a philanthropist in whom zeal and judgment balance each other, may know far more than most politicians. But the fact remains that the effect of political life, and of the associations that it brings, is of very great benefit in producing a better understanding and a keener fellow-feeling among men who otherwise would know one another not at all, or else as members of alien bodies or classes."