— 133 —
      §5. But whether this be so, or no, I will not here determine, but
appeal to every one’s own Experience, whether the shadow of a
Man, though it consists of nothing but the absence of Light (and
the more the absence of Light is, the more discernible is the
shadow) does not, when a Man looks on it, cause as clear and posi-
tive an Idea in his mind, as a Man himself, though covered over with
clear Sun-shine? And the Picture of a Shadow, is a positive thing.
Indeed, we have negative Names, which stand not directly for
positive Ideas, but for their absence, such as Insipid, silence, Nihil, etc.
which Words denote positive Ideas; v.g. Tast, Sound, Being, with a
signification of their absence.
Locke Hum II, 8, §5, p. 133