The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from Moon-Face and Other Stories by Jack London:|
and Lloyd following me about and lending a hand now and again, we fell to
discussing the mythical race of invisible people, that strange and vagrant
people the traditions of which have come down to us. Lloyd warmed to the talk
in his nervous, jerky fashion, and was soon interrogating the physical
properties and possibilities of invisibility. A perfectly black object, he
contended, would elude and defy the acutest vision.
"Color is a sensation," he was saying. "It has no objective reality. Without
light, we can see neither colors nor objects themselves. All objects are black
in the dark, and in the dark it is impossible to see them. If no light strikes
upon them, then no light is flung back from them to the eye, and so we have no
vision-evidence of their being."