of the Anarresti society. An oft-quoted saying in the book is "true journey is return." The meaning of Shevek's theories—which deal with the nature of time and simultaneity—have been subject to interpretation. For example, there have been interpretations that the non-linear nature of the novel is a reproduction of Shevek's theory. Anarchism and capitalism In her foreword to the collected Hainish novels, Le Guin notes her "great, immediate affinity" with anarchist thinkers Peter Kropotkin and Paul Goodman. Elsewhere, she writes that "Odonism is anarchism," mentioning parallels with Emma Goldman, Taoism and Percy Bysse Shelley. For Le Guin, anarchism's "principal target is the authoritarian State (capitalist or socialist); its principal moral-practical theme is cooperation (solidarity, mutual aid)." Both on Anarres and Urras, many conflicts occur between these anarchist principles and the constraints imposed by authority and society. On Anarres, there are no written laws. However, in practice, there are strong conventions about how most things should be done, which frustrate Shevek throughout the novel. Money is also not used, and instead the Anarresti rely on the DivLab database to match volunteer labor with work assignments. Via these conventions and institutions, The Dispossessed depicts an anarchist-syndicalist "alternative to capitalism. Le Guin’s computational economy combines a central economic plan for society with democratic decision-making on a syndicalist model, bureaucratic and computational efficiency, and a negotiated tension among syndicate federalism, individual autonomy, and the danger of centralized authority." The language spoken on Anarres also reflects anarchism. Pravic is a constructed language in the tradition of Esperanto. Pravic reflects many aspects of the philosophical foundations of utopian anarchism. For instance, the use of the possessive case is strongly discouraged, a feature that also is reflected by the novel's title. Children are trained to speak only about matters that interest others; anything else is "egoizing" (pp. 28–31). There is no property ownership of any kind. Shevek's daughter, upon meeting him for the first time, tells him, "You can share the handkerchief I use" rather than "You may borrow my handkerchief", thus conveying the idea that the handkerchief is not owned by the girl, but is merely used by her. Utopianism The work is sometimes said to represent a modern revival of the utopian genre. When first published, the book included the tagline: "The magnificent epic of an ambiguous utopia!" which was shortened by fans to "An ambiguous utopia" and adopted as a subtitle in certain editions.