Agatha Christie said this quote
“ Well, people are like that too. THey create a false door - to deceive. If they are conscious of weakness, of inefficiency, they make an imposing door of self-assertion, of bluster, of overwhelming authority - and, after a time, they get to believe in it themselves. They think, and everybody thinks, that they are like that. But behind that door, Renisenb, is bare rock... And so when reality comes and touches them with the feather of truth - their true self reasserts itself. ”