Full Idea
Fourth mode: perceivers vary in their mental and physical state (such as the mad and the sick).
Gist of Idea
Perception varies with madness or disease (Mode 4)
Source
report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.9
Book Reference
Diogenes Laertius: 'Diogenes Laertius', ed/tr. Yonge,C.D. [Henry G. Bohn 1853], p.410