Authors:
  • It is alone that part of the external universe which we call material which acts on man through his senses - that part of which we ordinarily feel our knowledge to be the surest; but in reality, strangely enough, as will soon appear, this is one of the aspects of the external world, of which we can know nothing.

    "Man's Moral Nature" by Richard Maurice Bucke, (Ch. 1), 1879.