‹‹‹ Vitr. 6.2.2 | Table of Contents | Vitr. 6.2.4 ›››
3But whether the sight arises from the impression which images make on the eye, or by an effusion of visual rays from the eye, as naturalists contend, it is certain that, in some way or other, the eye is often deceived.
3Now whether this appearance is due to the impact of the images, or to the effusion of the rays from the eye, as the physicists hold, in either case it is obvious that the vision may lead us to false impressions.