The main way in which colonists forced the British government to repeal the various taxation acts enacted between 1764 and 1767 was through direct protests and a boycott of many British goods, as organized by the Sons of Liberty.
That to secure these rights, governments are instituted among men, deriving their just powers from the consent of the governed, that whenever any form of government becomes destructive of these ends, it is the right of the people to alter or to abolish it, and to institute new government
Many people in the South of the United States opposed tariffs because they would have disproportionately affected agricultural business--which was at the heart of the Southern economy.
Sigmund Freud was the one who did extensive research into the human mind in order to explain human behavior. One of his focus areas was dream analysis