üttVTtav  XQrj/uanov  /ustqov  ccv&Qtonog.
Protagoras.

ndXffxog  nctrrjQ  navTOiv.

Heraklit.

Value  dwells  not  in  partieular  will,
It  holds  its  estimate  and  dignity
As  well  wherin  ’tis  preeious  of  itself.
As  in  the  prizer.
Shakespeare,
Troilus  and  Cressida,  II.  2.

Labour  is  a  commodity,  which  cannot
be  increased  and  diminished  at  pleasure.
D.  Ricardo,
Principles  of  Political  Economy,  IX  Ch.

The  labour  of  nature  is  paid,  not  becaase
  she  does  much,  but  because  she
does  little.  In  proportion  as  she  becomes
niggardly  in  her  gifts,  she  exacts  a  greater
price  for  her  work.  Where  she  is  munificently
  beneficent,  she  always  works  gratis.
D.  Ricardo,
Principles  of  Political  Economy,  11  Ch.