To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.
-- Nicolaus Copernicus
   
Nicolaus Copernicus   Name:
Nicolaus Copernicus
Type:
Scientist
Nationality:
Polish
Birth:
February 19, 1473
Death:
May 24, 1543
https://www.nutquote.com/quote/Nicolaus_Copernicus