Full Idea
Over himself, over his own body and mind, the individual is sovereign.
Gist of Idea
Individuals have sovereignty over their own bodies and minds
Source
John Stuart Mill (On Liberty [1857], Ch.1)
Book Reference
Mill,John Stuart: 'Utilitarianism (including On Liberty etc)', ed/tr. Warnock,Mary [Fontana 1962], p.135
A Reaction
If I should not even think about evil deeds, then neither should you. I would prevent you if I could. I would prevent you from drinking yourself to death, if I could. It is just that intrusions into private lives leads to greater trouble.