I realized immediately that this was a terribly important discovery, but I didn't realize how important it would be until we had spent a lot of time in the laboratory studying it.
-- Donald Johanson
   
Donald Johanson   Name:
Donald Johanson
Type:
Scientist
Nationality:
American
Birth:
June 28, 1943
https://www.nutquote.com/quote/Donald_Johanson