Answer :

Liberals believe in government action to achieve equal opportunity and equality for all. It is the duty of the government to alleviate social ills and to protect civil liberties and individual and human rights. Believe the role of the government should be to guarantee that no one is in need. Liberal policies generally emphasize the need for the government to solve problems. Conservatives believe in personal responsibility, limited government, free markets, individual liberty, traditional American values and a strong national defense. Believe the role of government should be to provide people the freedom necessary to pursue their own goals. Conservative policies generally emphasize empowerment of the individual to solve problems.
Because if the liberals had the power, they would create new things and ideas but if the conservatives had power, they would want everything to go back to the way it used to be.