A lot of people think this is different , let me give you some ideas -
The purpose of government is to protect the rights of the individual?
Provide for national defense, foreign affairs?
Local level: maintain police and fire, run a court system?
Promote general welfare?
Is it the governments role to make sure people are healthy?
Is it the governments role to enforce drug bans and control people?
Is it the Government role to force tax on people?
Just some ideas, I don't agree with them or disagree with any necessarily , just ideas.