His main goal was to end slavery
<span>Most original Native American governments lend support to the "Evolution" theory of the origin of government. All Native American 'Governments' were Socialist Republics</span>
They failed because nobody cared about the railroad. The railroad had to be a government project with leases to companies but the government was too much involved in the slavery issue that it didn't have time to deal with railroads. That's why railroads boomed after the civil war ended.
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The verse is in short saying that the generation you left an impression on will talk about you to the next generation, e.g. when your family members talk about the accomplishments of your great/grandparents