This is true in relationships and also pertains to moving, having to say goodbye to family and friends, making a career change, saying goodbye to old habits/lifestyles,etc. Be Brave enough to say goodbye and life will reward you with a new hello :)
There are some people who could hear you speak a thousand words and still not understand you. And there are other who will understand without you even speaking a word. The best collection of quotes and sayings for every situation in life.