Expert Mind vs. Beginner’s Mind

Assumptions or misconceptions “subject matter experts” often make:

They know everything about the particular subject
They have the respect of their (followers, students, readers) because they forgot more about the subject than anyone else knows.
They do not see with “Beginner’s Mind”
A very wise book on Zen Buddhism by Shunryu Suzuki talks about the contrast between Beginner’s and expert’s mind.