text:  If it did it would (_firstly_) either be impossible for it _afterwards_ to induce us to associate them with the presence of tangible bodies distant and different from the eye: or (_secondly_) such an association would merely give birth to the abstract knowledge or conclusion that these bodies were in one place while the sensations suggesting them were felt to be associated with something in another place; colour would not be seen--as it is--incarnated with body: or (_thirdly_) we should be compelled to postulate for the eye as many philosophers have done in our opinion most unwarrantably "a faculty of projection"[37] by which it might dissolve the association between itself and its sensations throwing off the latter in the form of colours over the surface of things and reversing the old Epicurean doctrine that perception is kept up by the transit to the sensorium of the ghosts or _simulacra_ of things Quae quasi membranae summo de corpore rerum Direptae volitant ultro citroque per auras