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It might also mean that the features are not evidence of life at all , even on Mars ... After all , attention does n't feed my stomach , put a shirt on my back , or a roof over my head - - unless I can somehow exchange the attention ( or the " right to get attention " ) for one of the many physical needs that people have ( not to mention other less immediate needs , such as entertainment , sex , etc. ) Plus , many people prefer to live anonymously - - so attention would have no intrinsic value to them and would only have value as a medium of exchange . Throughout their not-always-easy life together , Fanny takes an equal share in the work on the farm and , when the chance comes to change it all , she elects to stay with Heber . Taking a cordial farewell of them all , he set out in the company of a Dew , who had been deputed to act as his escort . We were lucky , after all , because after the U - 2 incident the United States Government did not even apologize , it proclaimed its right to carry out flights over Soviet territory .