Full Idea
The best way to prevent enslavement of one person to another is to give each person ownership over himself.
Gist of Idea
If everyone owned himself, that would prevent slavery
Source
Will Kymlicka (Contemporary Political Philosophy (1st edn) [1990], 4.2.c)
Book Reference
Kymlicka,Will: 'Contemporary Political Philosophy (1st edn)' [OUP 1992], p.124
A Reaction
[The idea comes from Nozick, but Kymlicka is assessing how it should be understood] The best way to block any social evil like slavery is to make it unthinkable. Legislation is second best. Presumably I could sell myself into slavery (like Faust)?