The correct answer to this open question is the following.
It seems that your question is missing the context or the reference.
It refers to a statement made by General Collin Powel, former Secretary of State. If that is the case, then the correct answer is the following.
Secretary of State Colin Powell expressed his belief that America’s success is based upon the nation’s diverse population. I totally agree with his statement.
Of course, America is successful for many reasons, but one of the most important truly is the diversity of its people.
My first example is that this great nation was built by immigrants, people that came from England founded the 13 first colonies in North America.
Secondly, as history teaches us, many European immigrants came to this country to find a better life through hard work and commitment: Italians, Irish, Jewish, and many more. Of course, there are the African people who were brought to America as part of the slave trade.
Finally, Asian and Latin American immigration have given their own identity to the United States because most of them have an open productive business or are working in the fabrics, industries, and farms of America. All of them brought with them their history, traditions, culture, and customs, forging the diverse United States that have contributed since their fronts, this great country.