Suppose you had inherited the same body and temperament and mind that Al Capone had. Suppose you had had his environment and experiences. You would then be precisely what he was. . . . For it is those things - and only those things - that made him what he was. . . . You deserve very little credit for being what you are - and remember, the people who come to you irritated, bigoted, unreasoning, deserve very little discredit for being what they are.
Dale CarnegieThere is a certain degree of satisfaction in having the courage to admit one's errors. It not only clears up the air of guilt and defensiveness, but often helps solve the problem created by the error
Dale CarnegieDon't criticize, condemn or complain. Constantly criticizing, condemning and complaining is what breaks most relationships. Instead of criticizing and condemning, figure out how you can solve the problem together. Instead of focusing on blaming the other person for what they did wrong, focus on how you can avoid the problem next time.
Dale Carnegie