Grounds for government limitation of liberty:
1. prevent harm to others
Mill: only to prevent direct harm to others
that violates their rights
2. prevent harm to self
Case for coercion to prevent harm to self stronger
where:
person coerced is irrational
or acting on impulse
high risk of great harm
coercion used is minimal
3. prevent offense to others
consider value of offensive
acts to those who engage in them
value to society
degree and duration of discomfort
caused
ability to avoid
4. prevent moral wrongs (that do not harm others)