This article first exposes one of the central theses of Javier Hernández-Pacheco's thought: the thesis of the moral imperative that drives us to transform the world to turn it into an expression of freedom. And secondly, the discussion that Javier Hernández-Pacheco and the author of this article held about the compatibility of the end that is expressed in that moral imperative with the framework of nature expressed by the laws of physics is summarized.