" The messages you received from your family or your childhood experiences may have caused you to believe that assertiveness is unacceptable or even dangerous. Practice saying the following: I have the right to be treated with respect by others. I have the right to express my feelings and opinions. I have the right to say no without feeling guilty. I have the right to ask for what I want. I have the right to make my own mistakes. I have the right to pursue happiness. "

― Beverly Engel , The Nice Girl Syndrome: Stop Being Manipulated and Abused -- And Start Standing Up for Yourself