The correct answer to this open question is the following.
The work which I identify the most is a book called "Heart of America," written by Bill Hallamandaris. In this work, the author refers to ten core values that identify the American people and that are very characteristic of the citizens of the United States. Among the traits that make American people so unique, the author mentions liberty, ambition, compassion, responsability, and unity.
One specific example from the texts that "clicked" with my personal feelings or experience is when the author mentions that these traits or characteristics were at the very beginning of the creation of the United States when the founding fathers decided to give liberty and independence from Great Britain and all the things that had to overcome during the Revolutionary War, the Proclamation of the Declaration of Independence, until the adoption of the final US Constitution during the Constitutional Convention in Philadelphia, Pennsylvania.
The work spoke to me as it did because I have always identified with the original ideas of prominent Americans such as Benjamin Franklin, George Washington, or Thomas Jefferson, who were brave enough to fight for what was right and give liberty to this great nation.