From an interview with Roy Bhaskar:
I argued against the stark polarity and contrast between facts and values. There is a dialectical interrelation between facts and values, in which we are never situated in a value free context. Values always impregnate and imbue our social praxis and our factual discourse, but at the same time, facts themselves do generate evaluative conclusions. This paved the way for the refutation of Hume’s law. * Truth and factuality are themselves norms, but that is a presupposition of all factual discourse, and on the basis of that value we can generate other evaluative conclusions.
* Hume’s law separates the factual from the normative and argues that normative statements follow on from factual ones.