The strength, permanence, and class-character of economic groups are made conspicuous by comparison with forms of grouping based on other principles. Political parties, groups of idealists, or communities professing a common creed, are associations which cannot but be weak and transient in view of their heterogeneous composition and of the accidental character of their bond of union. Political bodies, for instance, are made up of men of various interests grouped only by community of ideas. This is true even of the Socialist party which consists of manufacturers, financiers, doctors, and lawyers, as well as of workingmen. Even the Socialist party cannot, therefore, make prominent the class-division of society, and tends to merge all classes into one conglomeration which is unstable and incapable of persistent collective action. Only in groupings of real and fundamental interests such as the syndicats, are men of the same conditions brought together for purposes inextricably bound up with life. The syndicat groups men of one and the same trade in their capacity of workingmen only, regardless of any other qualifications. The workingmen entering a syndicat may be Catholics or Protestants, Republicans, Socialists, or Monarchists, they may be of any color, race or nationality; in their capacity of workingmen they are all equally welcome and legitimate members of the syndicat. A workingman enrolling in a syndicat is not entering a party, not subscribing to a platform, nor accepting a creed. He is simply entering into a relation which is forced upon him by his very position in society, and is grouping himself with his fellowmen in such a way as to derive more strength for himself in the struggle for existence, contributing at the same time to the strength of his fellowmen. These conditions make the syndicat peculiarly fit to serve the interests of the workingmen. The syndicat is a sphere of influence which by the volume of its suggestion and by the constancy and intensity of its action shapes the feelings and ideas of the workingmen after a certain pattern. In the syndicat the workingmen forget the things which divide them and are intent upon that which unites them. In the syndicat the workingmen meet to consider common interests, to discuss their identical situation, to plan together for defense and aggression, and in all ways are made to feel their group-solidarity and their antagonism to the class of employers. In view of this the syndicats should prefer industrial unionism to craft unionism. The separation of workingmen into trades is apt to develop in them a corporate spirit which is not in harmony with the class-idea. The industrial union, on the contrary, widens the mental horizon of the workingman and his range of solidarity with his fellow workers and thus serves better to strengthen his class-consciousness.