An “image,” in the most strict signification of the word, is the resemblance of something visible; in which sense the fantastical forms, apparitions, or seemings of visible bodies to the sight, are only “images,” such as are the show of a man, or other thing in the water, by reflection or refraction; or of the sun or stars by direct vision in the air; which are nothing real in the things seen, nor in the place where they seem to be; nor are their magnitudes and figures the same with that of the object; but changeable, by the variation of the organs of sight, or by glasses, and are present oftentimes in our imagination and in our dreams, when the object is absent; or changed into other colours and shapes, as things that depend only upon the fancy. And these are the “images” which are originally and most properly called “ideas” and “idols,” and derived from the language of the Grecians, with whom the word εἴδω signifieth “to see.” They also are called “phantasms,” which is in the same language “apparitions.” And from these images it is that one of the faculties of man’s nature is called the “imagination.” And from hence it is manifest that there neither is, nor can be, any image made of a thing invisible.