Full Idea
Government interference should be restricted because of the great evil of adding unnecessarily to its power.
Gist of Idea
It is evil to give a government any more power than is necessary
Source
John Stuart Mill (On Liberty [1857], Ch.5)
Book Reference
Mill,John Stuart: 'Utilitarianism (including On Liberty etc)', ed/tr. Warnock,Mary [Fontana 1962], p.244
A Reaction
This would need justification, because it might be replied that individuals should not have unnecessary power either. The main problem is that governments have armies, police and money.