If you can be sure of being right only 55 percent of the time, you can go down to Wall Street and make a million dollars a day. If you can't be sure of being right even 55 percent of the time, why should you tell other people they are wrong?
Dale CarnegieWhen we are not engaged in thinking about some definite problem, we usually spend about 95 percent of our time thinking about ourselves. Now, if we stop thinking about ourselves for a while and begin to think of the other person's good points, we won't have to resort to flattery so cheap and false that it can be spotted almost before it is out of the mouth.
Dale CarnegieDealing with people is probably the biggest problem you face, especially if you are in business. Yes, and that is also true if you are a housewife, architect or engineer.
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