The product of mental labor - science - always stands far below its value, because the labor-time necessary to reproduce it has no relation at all to the labor-time required for its original production.
-- Karl Marx
   
Karl Marx   Name:
Karl Marx
Type:
Philosopher
Nationality:
German
Birth:
May 5, 1818
Death:
March 14, 1883
https://www.nutquote.com/quote/Karl_Marx