Utopia is a meta-utopia: the environment in which Utopian experiments may be tried out; the environment in which people are free to do their own thing; the environment which must, to a great extent, be realized first if more particular Utopian visions are to be realized stably.

Ch. 10 : A Framework for Utopia; The Framework, p. 312 - Anarchy, State, and Utopia (1974)