Adam Smith is generally regarded as the founder of modern economics. Adam Smith advocated the capitalist free enterprise system, based on the belief that men are motivated by rational self-interest. His book "Wealth of Nations" became a standard text book for economists throughout the Western world
They just hoped that people would listen to them they never explicitly enforced anything they said.
Answer:
The philosophy drove 19th-century U.S. territorial expansion and was used to justify the forced removal of Native Americans and other groups from their homes. The rapid expansion of the United States intensified the issue of slavery as new states were added to the Union, leading to the outbreak of the Civil War.
