Full Idea
Epicurus says that if one sense has told a lie once in a man's life, no sense must ever be believed.
Gist of Idea
Epicurus says if one of a man's senses ever lies, none of his senses should ever be believed
Source
report of Epicurus (fragments/reports [c.289 BCE]) by M. Tullius Cicero - Academica II.25.79
Book Reference
Cicero: 'De Natura Deorum and Academica (XIX)', ed/tr. Rackham,H. [Harvard Loeb 1933], p.567