If the Opposition is not to be regarded as revolutionary, its objects must not be of that character, either in the eyes of its own adherents, or in those of other people. As Professor Dicey has put it, parties must be divided upon real differences, which are important, but not fundamental. There is, of course, no self-evident line to mark off those things that are revolutionary or fundamental; and herein lies an incidental advantage of a written constitution restricting the competence of the legislature, for it draws just such a line, and goes far to confine the immediate energies of the parties to questions that are admitted not to be revolutionary.[438:1] In the absence of a constitution of that kind, party activity must be limited to a conventional field, which is regarded by the public opinion of the day as fairly within the range of practical politics. Clearly the issues must not involve vital matters, such as life or confiscation. When, during the progress of the French Revolution, an orator argued in favour of the responsibility of the ministers, and added "By responsibility we mean death," he advocated a principle inconsistent with the peaceful alternation of parties in power.

Lines of Cleavage must not be Social.

For the same reason there is grave danger when the lines of cleavage of the parties coincide with those between the different social classes in the community, because one side is likely to believe that the other is shaking the foundations of society, and passions are kindled like those that blaze in civil war. This is true whenever the parties are separated by any of the deeper feelings that divide mankind sharply into groups; and especially when two or three such feelings follow the same channel. The chief difficulty with Irish Nationalism, as a factor in English politics, lies in the fact that to a great extent the line of cleavage is at once racial, religious, social, and economic.

Issues must be Based on Public Matters.

In order that the warfare of parties may be not only safe, but healthy, it must be based upon a real difference of opinion about the needs of the community as a whole. In so far as it is waged, not for public objects, but for the private gain, whether of individuals, or of classes, or of collective interests, rich or poor, to that extent politics will degenerate into a scramble of self-seekers.

Relation of Parties to Political Institutions.

Before inquiring how far these conditions have been fulfilled in England we must consider the form that party has assumed there, and the institutions to which it has given birth. England is, in fact, the only large country in which the political institutions and the party system are thoroughly in harmony.

In America.

The framers of the Constitution of the United States did not foresee the rôle that party was to play in popular government,[439:1] and they made no provision for it in their plan; yet they established a system in which parties were a necessity. It was from the first inevitable, and soon became clear, that the real selection of the President would not be left to the judgment of the electoral college—a result made the more certain, first, by providing that the members should assemble by States, and hence should not meet together as a whole for deliberation; and second, by excluding from the college all congressmen and holders of federal offices, that is, all the leading men in national public life.[440:1] If the electoral college was not really to select the President, it must become a mere machine for registering the results of a popular vote throughout the nation, and the candidates for the presidency must be designated beforehand in some way.