I believe the answer is: 'The brave men, living and dead, who struggled here, have consecrated it,far above our poor power to add and detract
From the excerpt we can see that Abraham Lincoln acknowledge that he is fully aware the Civil war would indeed took a lot of sacrifice from the northern citizens. So he loudly said that those sacrifice wouldn't be for nothing and would lead to the creation of better society.
An Angel......................... sorry i needed 20 characters
Ok well,the much I know is:it tells how the olden days people survive and how the people use to be and they teach us a lesson. GREAT PEOPLE NEVER DIE they never go out of our hearts