"Our deepest fear is not that we are inadequate. Our deepest fear is that we are powerful beyond measure. It is our light, not our darkness that frightens us. We ask ourselves, "Who am I to be brilliant, gorgeous, talented and fabulous?". Actually, who are we not to be? You are a child of God. Your playing small does not serve the world. We are born to manifest the glory of God within us. It's not just in some of us - it is in everyone. And as we let our light shine, we unconsciously give other people permission to do the same. As we are liberated from our own fear, our presence automatically liberates others."
From Maryanne Williamson, as quoted by Nelson Mandela