Original sentence: As they remark:.But here it faces an ethical conundrum.Few people would die with the words "free markets" on their lips.In the Spanish Civil War in the late 1930s, Republican soldiers are said to have died with the word "Stalin" on their lips.It is based upon contracts, rules, and choice -- in short, on self-restraint -- which contrasts mightily with other ways of organizing economic activity.The market also requires something else: legitimacy.The reason the authors place so much emphasis on narrowing economic gaps is because they believe, against many of the people they interview, that there is no ideological support for capitalism, only the pragmatic fact that the system works better than any other.Their idealized vision of Soviet communism, however misguided, provided justification for their ultimate sacrifice.Yet a system that takes the pursuit of self-interest and profit as its guiding light does not necessarily satisfy the yearning in the human soul for belief and some higher meaning beyond materialism