Krishan Kumar said this quote

Utopia's value lies not in its relation to present practice but in its relation to a possible future. Its practical use is to overstep the immediate reality to depict a condition whose clear desirability draws us on, like a magnet.

~ Krishan Kumar

Utopia confronts reality not with a measured assessment of the possibilities of change but with the demand for change. 'This is the way the world should be.' It refuses to accept current definitions of the possible because it knows these to be part of the reality that it seeks to change... Wilde was right: 'A map of the world that does not include Utopia is not worth even glancing at.

~ Krishan Kumar

Utopia retains throughout its long history the basic form of the narrative of a journey. The traveler in space or time is an explorer who happens upon utopia. He (or, more recently, she) meets its people, usually at first its ordinary people, observes them at work and play, sees their dwellings and their cities... The traveler is, as are we, the more prepared to accept the validity and desirability of the general principles for having seen with his own eyes its effects in the daily life of its inhabitants.

~ Krishan Kumar