Editing Epicureanism (section)

====Sense perception====
Epicureans believed that senses also relied on atoms. Every object was continually emitting particles from itself that would then interact with the observer.<ref name="Wilson-2015c">{{harvnb|Wilson|2015|pp=54–55}}</ref> All sensations, such as sight, smell, or sound, relied on these particles.<ref name="Wilson-2015c" /> While the atoms that were emitted did not have the qualities that the senses were perceiving, the manner in which they were emitted caused the observer to experience those sensations, e.g. red particles were not themselves red but  were emitted in a manner that caused the viewer to experience the color red.<ref name="Wilson-2015c" /> The atoms are not perceived individually, but rather as a continuous sensation because of how quickly they move.<ref name="Wilson-2015c" />

The Epicureans believed that all sense perceptions were true,<ref>{{Cite book |title = The Cambridge Companion to Epicureanism|url=https://archive.org/details/cambridgecompani00warr_995|url-access=limited | last=Asmis|first=Elizabeth|publisher=Cambridge University Press|year=2009|editor-last=Warren|editor-first=James|page=[https://archive.org/details/cambridgecompani00warr_995/page/n93 84]|chapter=Epicurean empiricism}}</ref><ref name="O'Keefe-2010q">{{harvnb|O'Keefe| 2010 | pp=97–98}}</ref> and that errors arise in how we judge those perceptions.<ref name="O'Keefe-2010q"/> When we form judgments about things (''hupolepsis''), they can be verified and corrected through further sensory information.<ref name="O'Keefe-2010q"/><ref name="Bakalis-2005">{{Cite book|title=Handbook of Greek Philosophy: From Thales to the Stoics Analysis and Fragments|last=Bakalis|first=Nikolaos|publisher=Trafford Publishing|year=2005|location=Canada|pages=193–197}}</ref><ref>{{Cite book|title=Epicurus and the Epicurean Tradition|url=https://archive.org/details/epicurusepicurea00fish|url-access=limited|last=Konstan|first=David|publisher=Cambridge University Press|year=2011|editor-last=Fish|editor-first=Jeffrey|location=Cambridge|pages=[https://archive.org/details/epicurusepicurea00fish/page/n75 62]–63|isbn=9780521194785|editor-last2=Sanders|editor-first2=Kirk R.}}</ref> For example, if someone sees a tower from far away that appears to be round, and upon approaching the tower they see that it is actually square, they would come to realize that their original judgement was wrong and correct their wrong opinion.<ref name="O'Keefe-2010r">{{harvnb|O'Keefe|2010|pp=103–104}}</ref>