— 133 —
      §6. And thus one may truly be said to see Darkness. For
supposing a hole perfectly dark, from whence no light is reflected,
— 134 —
’tis certain one may see the Figure of it, or it may be Painted; or
whether the Ink, I write with, makes any other Idea, is a Question.
The privative causes I have here assigned of positive Ideas, are
according to the common Opinion; but in truth it will be hard to
determine, whether there be really any Ideas from a privative cause,
till it be determined, Whether Rest be any more a privation than Motion.
Locke Hum II, 8, §6, pp. 133-134