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How these conduits develop probably are influenced by the culture in which we live . The public services we use help shape the country we live in . For the first time , tragedy had been brought near to him , and he marvelled at the indifference with which men habitually live in a world where tragedy is every hour 's occurrence . Millions are malnourished and live on the verge of starvation . Perhaps , just perhaps , a thickening martian atmosphere would eventually make it easier for people to live on Mars .