Describing America in the World, with its highly concentrated and flesh-and-blood story, unfolds a panoramic view of American history for readers like a movie plot, completely shows the process of an optimistic nation creating history in the great historical changes, clearly shows the major events in American history, and allows readers to explore the mystery of how this young superpower created historical miracles. It is a wonderful historical popular reading. For the first time in human history, the Declaration of Independence put forward the following principles in the form of a political program: all people are born equal, enjoy inalienable rights to life, liberty and pursuit of happiness, and the government must be formed with the consent of the people. These principles became the ideology of the United States later, and laid the ideological foundation for the development of the United States for more than 200 years. If the Declaration of Independence laid the ideological foundation for Americans in the form of law, then the spiritual core of Americans was formed with its historical development.

Americans are pragmatic. When groups of British immigrants followed the footsteps of the Mayflower across the ocean to the North American continent, they first faced numerous difficulties and obstacles on the primitive North American continent, and they had to solve problems such as how to obtain living resources and how to deal with the threat of Indians. Immigrant life has made Americans more practical and cultivated pragmatic national spirit.

Americans are independent and free. The United States established its own country through the War of Independence. Washington once said: "The spirit of freedom is surging in our hearts, and we will not succumb to slavery ... We are determined to sever all ties with such an unjust and inhuman country." After the baptism of war and fire, the spirit of independence and freedom is deeply engraved in the souls of Americans and has become their spiritual gene passed down from generation to generation.

Americans are pioneering. The westward movement caused a large number of Americans to sell their property in order to acquire land in the west, shouting the slogan of "get rich or go bankrupt" and rush to the west to open up a new world. This history has not only enabled the rapid development of the western United States, but also injected pioneering spirit into the blood of Americans.

Equality, pragmatism, independence, freedom and pioneering spirit constitute the core of the American spirit and the character of the American nation.