This quote is from Nelson Boswell, "The first and most important step toward ..... success is the feeling that we can succeed."  When a person believes they can succeed their chance of success goes way up.  The reason negative people are so destructive to success is because they make a person doubt their capabilities.  I decided along time ago to focus spending time with, reading about, and listening to people that encourage me.  This simple concept changed the results of my whole life.  How about you?  When are you going to start controlling what goes into your brain.  Garbage in means Garbage out!  Spend more time investing in your brain than you do your belly and look out at what you can achieve! God Bless you.