People don't like changing their beliefs

I like this quote (we all know some poor academics and consultants who rely on this phenomenon):

"It is more comfortable to have one’s existing beliefs and skills reinforced.......students give high ratings to outside speakers who tell them to rely on their gut instincts because techniques taught in school are of no value in the real world"

From J.Scott Armstrong (1998) “Are Student Ratings of Instruction Useful?” American Psychologist, vol. 53, p.1223-1224