… is from page 70 of Will Durant’s 1939 volume, The Life of Greece; Durant here describes an attitude that ancient Athenians had toward some other peoples:
[A] barbarian was a man content to believe without reason and to live without liberty.
DBx: The human population has never been without large numbers of barbarians. The last two years, however, have revealed to me that the number of barbarians amongst us in the early 21st century is much larger than I thought.