From Principles of Brain Management by Ilchi Lee.

Are there conditions in you life that your don’t like but that never seem to change no matter how hard you try to make them change? Quit trying to make them change. Instead, see how you can change yourself in relation to the problem. Yes, there are some truly intolerable situations that are genuinely beyond repair. In this worst-case scenario, you can resolve within yourself to leave the situation entirely. But most human problems are not so absolute. More than likely, even small changes that come from within you will completely transform your situation. They can change the way you communicate with others and help you reformulate your methods of coping with problems.