As in geology, so in social institutions, we may discover the causes of all past changes in the present invariable order of society.
-- Henry David Thoreau
   
Henry David Thoreau   Name:
Henry David Thoreau
Type:
Author
Nationality:
American
Birth:
July 12, 1817
Death:
May 6, 1862
https://www.nutquote.com/quote/Henry_David_Thoreau