"Philosophical skepticism should be distinguished from ordinary skepticism, where doubts are raised against certain beliefs or types of beliefs because the evidence for the particular belief or type of belief is weak or lacking ..." skepdic.com
Vogt, Katja (2018). Zalta, Edward N., ed. The Stanford Encyclopedia of Philosophy (Fall 2018 edición). Metaphysics Research Lab, Stanford University. Consultado el 9 de enero de 2019.
teoriadelconocimientodehume.wordpress.com
Hume, de El proceso de conocimiento en (20 de noviembre de 2011). «Hume: ¿escéptico moderado?». El proceso de conocimiento en Hume. Consultado el 16 de noviembre de 2019.
"Philosophical views are typically classed as skeptical when they involve advancing some degree of doubt regarding claims that are elsewhere taken for granted." utm.eduArchivado el 13 de enero de 2009 en Wayback Machine.
"... the two most influential forms of skepticism have, arguably, been the radical epistemological skepticism of the classical Pyrrhonian skeptics and the Cartesian form of radical epistemological skepticism" utm.eduArchivado el 13 de enero de 2009 en Wayback Machine.
web.archive.org
"Philosophical views are typically classed as skeptical when they involve advancing some degree of doubt regarding claims that are elsewhere taken for granted." utm.eduArchivado el 13 de enero de 2009 en Wayback Machine.
"... the two most influential forms of skepticism have, arguably, been the radical epistemological skepticism of the classical Pyrrhonian skeptics and the Cartesian form of radical epistemological skepticism" utm.eduArchivado el 13 de enero de 2009 en Wayback Machine.
