What this quote is saying is that America has finally reached its horizon We as a nation have different ethnicities and should be proud of it. Many races have a unique way of giving back to the American society whether it's different beliefs, different styles, customs- We all placed our footprints in the American soil and each footprint symbolizes different paths, influences, actions, inspiration toward making society the beginnings of a new era "The one race nation" which brings new ideas to the table that can make society better for all (no violence, prejudice, no one above the law) In generations, people are equalized which stands to the point "whose labors....will one day cause great changes in the world." It is time to resist the world
