Related:

• Expert, n.: Someone who comes from out of town and shows slides.
• An expert is a man who has stopped thinking. Why should he think? He's an expert.
• The expert is a person who avoids the small errors as he sweeps on to the grand fallacy.
• None of our men are "experts." We have most unfortunately found it necessary to get rid of a man as soon as he thinks himself an expert -- because no one ever considers himself expert if he really knows his job.
  A man who knows a job sees so much more to be done than he has done, that he is always pressing forward and never gives up an instant of thought to how good and how efficient he is....
• None of our men are "experts." We have most unfortunately found it necessary to get rid of a man as soon as he thinks himself an expert -- because no one ever considers himself expert if he really knows his job.
  A man who knows a job sees so much more to be done than he has done, that he is always pressing forward and never gives up an instant of thought to how good and how efficient he is....
• wizard: n. 1. A person who knows how a complex piece of software or hardware works (that is, who {grok}s it)
  esp. someone who can find and fix bugs quickly in an emergency....
• Critical judgment of work in any given field has little value unless it comes from someone who is an expert in that field.
• An expert doesn't know more than you do. He is merely better organized and has slides.
  -- Van Oech's Law...