fear is a state of mind that actually stops you to achieve something bigy. Yes,due to this state of mind several brilliant minds remain closed to share the wonderful ideas, just because of their comfort zones.
I do personally feel that success can not be achieved through ease, it really demands passion and courage to face the toughness of life with confident arms.
Jut remember, Fear is a state which will put more hurdles in your path, leads to success,if you really wants to be a successful person in your life then be a fearless !!