Full Idea
On entering a dark room we see no colour, but do so after waiting a short time.
Gist of Idea
When entering a dark room it is colourless, but colour gradually appears
Source
Epicurus (fragments/reports [c.289 BCE]), quoted by Plutarch - 74: Reply to Colotes 1110d
Book Reference
Plutarch: 'Moralia - vol 14', ed/tr. Einarson,B. /De Lacy P.H. [Harvard Loeb 1967], p.209