Student or Learner
What does "Every confidence proves but a prejudice" mean?
> What does "Every confidence proves but a prejudice" mean?
It means anyone who is confident to know the answer to a question or an issue is not open to other people's ideas. Of course, such "prejudice" may be warranted or not, depending on the question or issue. A clear statement of fact of which someone is certain may not be considered prejudice by most people -- only those, say, who disagree with the statement.
The phrase is usually applied to issues subject to debate, over which there may be contention. (I am quite confident of this