Change means doing or becoming something different than before. We all change through life as we grow and mature, and the world changes around us as time goes by. These changes can not be stopped and are called progress. Sometimes change is made in order to make something or someone better than what they were, such as a change to be nicer or stop smoking. Change can be positive or negative, depending on the situation.
If you're going to go to the next level, your values are going to have to change!
If you can make somebody, anybody happy do it. The world needs more of that.
When the Pain of Staying becomes greater than the Pain of Leaving, only then will you make a change.