The fetishism of legality was and remains one of the most striking features of socialism acquired class collaboration. It involves the belief in the possibility of transforming the capitalist order without conflicting with its privileged. But rather than an indication of a very compatible with the mentality of politicians candor, it is the corruption of the leaders. Installed in a company they pretend to fight, they recommend the rules of the game. Working class, it can not meet the bourgeois legality only if they ignore the proper role of the state, the character misleading to democracy; Briefly, the first principles of the class struggle.