The Art of Saying No
Many of us believe that we must be as accepting as possible. However, if we don't reject anything, then we stand for nothing. There's a level of joy and meaning that you find only when you've invested in a single thing, and in order to do that, you must reject the alternatives.
To choose one value means you must reject the other values. Therefore, rejection is a necessary part of maintaining values and therefore our identity. Rejection is crucial to life.