Other publications of Owen were: Outline of the Rational System of Society (6th ed., Leeds, 1840); The Revolution in the Mind and Practice of the Human Race, or the coming change from Irrationality to Rationality (1849); The Future of the Human Race, or a great, glorious and peaceful Revolution, near at hand, to be effected through the agency of departed spirits of good and superior men and women (1853); The New Existence of Man upon Earth, Parts i.-viii., 1854-55.] proclaimed the approach of an ideal society in which there will be no ignorance, no poverty, and no charity--a system "which will ensure the happiness of the human race throughout all future ages," to replace one "which, so long as it shall be maintained, must produce misery to all." His own experimental attempt to found such a society on a miniature scale in America proved a ludicrous failure.
It is to be observed that in these socialist theories the conception of Progress as indefinite tends to vanish or to lose its significance.

If the millennium can be brought about at a stroke by a certain arrangement of society, the goal of development is achieved; we shall have reached the term, and shall have only to live in and enjoy the ideal state--a menagerie of happy men.

There will be room for further, perhaps indefinite, advance in knowledge, but civilisation in its social character becomes stable and rigid.

Once man's needs are perfectly satisfied in a harmonious environment there is no stimulus to cause further changes, and the dynamic character of history disappears.
Theories of Progress are thus differentiating into two distinct types, corresponding to two radically opposed political theories and appealing to two antagonistic temperaments.

The one type is that of constructive idealists and socialists, who can name all the streets and towers of "the city of gold," which they imagine as situated just round a promontory.