An egocentric person couldn't even endure or tolerate a justified criticism. He becomes purple, flushed of face, he starts to have a stomachache, high blood pressure and he becomes insane. That is because criticism offends his ego, because his whole body becomes his ego, that creates an immense allergy in his body. But when he criticizes himself, his ego would be shuttered and would stop assaulting his body. His body would be soothed and calmed. He would regain his mental balance. After that he will be able to think and talk rationally and reasonably. - Harun Yahya