|"In actual laboratory experiments monkeys were forced to choose between electro-shocking other monkeys and doing without food themselves. Almost all of the monkeys went hungry for up to two weeks rather than shock others. These macaques, who have never gone to Sunday school, never heard of the Ten Commandments, never squirmed through a single junior high school civics lesson, seem courageous in their moral grounding and their resistance to evil. If the situation was reversed, and captive humans were offered the same deal by macaque scientists, would we do as well?"
Carl Sagan and Ann Druyan in their book
"Shadows of Forgotten Ancestors"