Darwin based his theory on generalizations that were strictly empirical. You can go out and see that organisms do vary, that variations are inherited, and that every organism is capable of increasing its numbers in sufficiently favorable circumstances.
-- George C. Williams
   
George C. Williams   Name:
George C. Williams
Type:
Scientist
Nationality:
American
Birth:
May 12, 1926
https://www.nutquote.com/quote/George_C._Williams