What it means to be Positive and Supportive

I took these words of wisdom from a book... "If you're concerned that your friends might think negatively about what you are doing, you have just proven and recognized that you have got some friends who think negatively."

I think that these words are really sad.. so I make a TWIST to it and add this: On the contrary, if you believe that your friends will definitely support you and think highly about what you are doing, you have proven and recognized that you have got friends who are positive towards you, and life in general, and as such, you are really fortunate.