Truths are known to us in two ways: some are known directly, and of themselves; some through the medium of other truths. The former are the subject of Intuition, or Consciousness; the latter, of Inference; the latter of Inference. The truths known by Intuition are the original premisses, from which all others are inferred.
John Stuart MillThe idea is essentially repulsive, of a society held together only by the relations and feelings arising out of pecuniary interest.
John Stuart Mill