<span>According to Carnegie, the duty of the man of wealth is to set an example of modest and unpretentious living, and abstaining from a display of luxury where they provide service by distributing their surplus wealth to the benefit of the community.</span>
The President is chief of state. This means he is the ceremonial head of the government of the United States, the symbol of all the people of the nation.
I suggest you just write things are the *key* details in the Declaration of Independence, but it's best to get some background information first.
