They not only help in glorifying the perception of America as a Nation, but also inspire her advance. Go through the quotes and feel yourself enthused with the spirit of patriotism.

1. "America is a tune. It must be sung together." - Gerald Stanley Lee
2. "Four score and seven years ago our fathers brought forth on this continent a new nation, conceived in liberty, and dedicated to the proposition that all men are created equal." 
3. "Patriotism is not short, frenzied outbursts of emotion, but the tranquil and steady dedication of a lifetime." - Adlai Stevenson
4. "I shall know but one country. The ends I aim at shall be my country’s, my God’s and Truth’s. I was born an American; I live an American; I shall die an American." - Daniel Webster
5. "We can't all be Washingtons, but we can all be patriots." - Charles F. Browne
6. "When an American says that he loves his country, he means not only that he loves the New England hills, the prairies glistening in the sun, the wide and rising plains, the great mountains, and the sea. He means that he loves an inner air, an inner light in which freedom lives and in which a man can draw the breath of self-respect." - Adlai Stevenson
7. "In a chariot of light from the region of the day,
   The Goddess of Liberty came
   She brought in her hand as 
   a pledge of her love, 
   the plant she named Liberty Tree." - Thomas Paine
8. "National honor is national property of the highest value." - James Monroe
9. "I only regret that I have but one life to lose for my country."
   - Nathan Hale
10. "If our country is worth dying for in time of war let us resolve that it is truly worth living for in time of peace." - Hamilton Fish
11. "If you are ashamed to stand by your colors, you had better seek another flag." - Author Unknown
12. "Sometimes people call me an idealist. Well, that is the way I know I am an American. America is the only idealistic nation in the world. 
    - Woodrow Wilson
13. "Sure I wave the American flag. Do you know a better flag to wave? Sure I love my country with all her faults. I'm not ashamed of that, never have been, never will be." - John Wayne
14. "There is nothing wrong with America that cannot be cured by what is right with America." - William J. Clinton
15. "We need an America with the wisdom of experience. But we must not let America grow old in spirit." - Hubert H. Humphrey
16. "I think there is one higher office than president and I would call that patriot." - Gary Hart
17. "Patriotism is easy to understand in America - it means looking out for yourself by looking out for your country." - Calvin Coolidge
18. "Patriotism is your conviction that this country is superior to all other countries because you were born in it." - George Bernard Shaw
19. "Oh, it's home again and home again, America for me! I want a ship that's westward bound to plough the rolling sea To the blessed land of Room Enough beyond the ocean bars, Where the air is full of sunlight and the flag is full of stars." - Henry Van Dyke
20. "When I die, I desire no better winding sheet than the Stars and Stripes, and no softer pillow than the Constitution of my country." 
    - Andrew Johnson