Mistakes to be prevented
Discussions end with no agreement reached because
of the attitude, "That is all there is to be said on the subject."
Prejudice arises from this attitude: "That is all that can be said about
a nationality, creed, class, or individual."
Learning is blocked by an attitude of, "I know all about it."
Rumor and gossip result because people accept a statement as "all the
False impressions result when people accept one cause as the explanation
of a complex matter.
(Above examples taken from Minteer, Words and What They
Do To You, Lesson 5)