Our success was mainly due to the fact that we stimulated the nerves of animals that easily stood on their own feet and were not subjected to any painful stimulus either during or immediately before stimulation of their nerves.
-- Ivan Pavlov
   
Ivan Pavlov   Name:
Ivan Pavlov
Type:
Psychologist
Nationality:
Russian
Birth:
September 14, 1849
Death:
February 27, 1936
https://www.nutquote.com/quote/Ivan_Pavlov