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American Dream from WikiPedia:

The American Dream is a national ethos of the United States of America in which democratic ideals are perceived as a promise of prosperity for its people. In the American Dream, first expressed by James Truslow Adams in 1931, citizens of every rank feel that they can achieve a "better, richer, and happier life." The idea of the American Dream is rooted in the second sentence of the Declaration of Independence which states that "all men are created equal" and that they have "certain inalienable Rights" including "Life, Liberty and the pursuit of Happiness."

The American Dream has been credited with helping to build a cohesive American experience but has also been blamed for overinflated expectations. The presence of the American Dream has not historically helped the majority of minority race and lower class American citizens to gain a greater degree of social equality and influence. Instead, the American wealth structure has often been observed to sustain class differences in which well-positioned groups continue to be advantaged.

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