This is just what I have thought when I have seen slaves at work - they seem to go through the motions of labor without putting strength into them. They keep their powers in reserve for their own use at night, perhaps.
-- Frederick Law Olmsted
   
Frederick Law Olmsted   Name:
Frederick Law Olmsted
Type:
Architect
Nationality:
American
Birth:
April 27, 1822
Death:
August 28, 1903
https://www.nutquote.com/quote/Frederick_Law_Olmsted