A positive operating system is enabling; it empower you to say yes to life.  The first time you say yes, a small positive change happens.  Then next time you say yes, the positive change is slightly larger.  Saying yes to life has an effect that is more than cumulative.  Each yes pushes you further up the exponential curve of positive change.  Each yes has a greater impact on your life than the last.  Most people say yes to life so infrequently that positive change never has a chance to compound and work its magic.  This is unfortunate because the best things in life happen when you ride the exponential curve of positive change all the way to the top.

Most people don't understand the mathematics of personal change.  When you say yes to life, your positive beliefs carry you up the exponential curve of change.  Saying no to life and running a negative operating system is like dividing by zero.  When you divide anything by zero, the answer is always zero.  That is exactly what a negative operating system does for you.  It divides your life by zero, and the result is zero.  You go nowhere; you are stuck where you are.

A positive operating system feels good.  It keeps you optimistic.  When you run a positive operating system, you look for the good and find it.  Good finders enjoy their lives more than negative people.  Good finders live a self-fulfilling prophecy that brings good things into their life.  They look for and discover all of the good qualities in their spouse.  They look at their teenagers, and they see the positive potential among all of the negative turmoil.  They look at their job, and they see opportunities for growth and advancement.  They look at themselves, and they know they are riding the exponential curve of positive change into an exciting future.  People who look for the good end up feeling good because they focus on the good things in their life.  A positive operating system makes every aspect of your life better.  There is no limit limit to how good your life can become when a positive operating system controls your mind. 

Excerpt from :

Zero Tolerance To Negative Thinking : Good-by Depression - Hello Positive Mind

David J Abbott M.D.