The recipe for perpetual ignorance is: Be satisfied with your opinions and content with your knowledge. (Elbert Hubbard, American writer and publisher)
Teachers might ask themselves, “Are we creating merely satisfied students or motivating curious learners?” Good teaching is far more than merely transferring knowledge from the mentor to the student. It should also create in students a dissatisfaction with their current ideas, so they will pursue greater understanding and discover deeper truths.
[Some evil doers are] always learning but never able to come to a knowledge of the truth. (2 Timothy 3:7)