You must take what you can find of it, and work with it if possible.

A theorist may easily map out a scheme of Government in which Queen Victoria could be dispensed with.

He may make a theory that, since we admit and we know that the House of Commons is the real sovereign, any other sovereign is superfluous; but for practical purposes, it is not even worth while to examine these arguments.
Queen Victoria is loyally obeyed--without doubt, and without reasoning--by millions of human beings.

If those millions began to argue, it would not be easy to persuade them to obey Queen Victoria, or anything else.

Effectual arguments to convince the people who need convincing are wanting.