In contrast to John Rawls, Richard Rorty and other important contemporary liberal philosophers who have tried to build a wall of separation between politics and philosophy, Mill thought that our political and economic conclusions had to rest on a firm philosophical foundation. One’s worldview mattered to one’s politics. This is why he had written his System of Logic first – to lay the foundation for what he thought would come later. In this respect, at least, Mill was closer to Aristotle than to Rawls.