Full Idea
I am somewhat suspicious of the notion of liberation, because one runs the risk of falling back on the idea that there is a human nature, that has been concealed or alienated by mechanisms of repression.
Gist of Idea
The idea of liberation suggests there is a human nature which has been repressed
Source
Michel Foucault (Ethics of the Concern for Self as Freedom [1984], p.282)
Book Reference
Foucault,Michel: 'Essential Works 1954-1984 I: Ethics', ed/tr. Rabinow,Paul [Penguin 1994], p.282
A Reaction
Personally I think there is (to some extent) a human nature, and that it fails to flourish if it gets too much 'liberation. However, the world contains a lot more repression than liberation, so we should all be fans of liberty.