Our Greatest Fear by Marianne Williamson from her book A Return to Love.

Our greatest fear is not that we are inadequate, but 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, handsome, talented and fabulous? Actually, who are you not to be? You are a child of God. Your playing small does not serve the world. There is nothing enlightened about shrinkingso that other people won't feel insecure around you. We were born to make manifest the glory of God within us. It is not just in some; it is in everyone. And, as we let our own light shine, we consciously giveother people permission to do the same. As we are liberated from our fear, our presence automatically liberates others.