Quietism in philosophy sees the role of philosophy as broadly therapeutic or remedial. Quietist philosophers believe that philosophy has no positive thesis to contribute, but rather that its value is in defusing confusions in the linguistic and conceptual frameworks of other subjects, including non-quietist philosophy. For quietists, advancing knowledge or settling debates (particularly those between realists and non-realists) is not the job of philosophy, rather philosophy should liberate the mind by diagnosing confusing concepts. Crispin Wright said that "Quietism is the view that significant metaphysical debate is impossible." It has been described as "the view or stance that entails avoidance of substantive philosophical theorizing and is usually associated with certain forms of skepticism, pragmatism, and minimalism about truth. More particularly, it is opposed to putting forth positive theses and developing constructive arguments." Quietism by its nature is not a philosophical school as understood in the sense of a systematic body of truths. The objective of quietism is to show that philosophical positions or theories cannot solve problems, settle debates or advance knowledge. It is often raised in discussion as an opposite position to both philosophical realism and anti-realism. Specifically, quietists deny that there is any substantial debate between the positions of realism and non-realism. There are a range of justifications for quietism about the realism debate offered by Gideon Rosen and John McDowell. Pyrrhonism represents perhaps the earliest example of an identifiably quietist position in the West. The Pyrrhonist philosopher Sextus Empiricus described Pyrrhonism as a form of philosophical therapy: The causal principle of scepticism we say is the hope of attaining ataraxia (being unperturbed). Men of talent, troubled by the anomaly in things and puzzled as to which of them they should rather assent to, came to investigate what in things is true and what false, thinking that by deciding these issues they would attain ataraxia.