Do we need them? Do they hold us back? Do they make us do stupid things? Are they the only thing that keeps us going as a society? What do you think?
For some reason your post reminded me of a book I read called "Who Moved My Cheese". In it the Author asks.... "what would you do if you were not afraid?" Its true if you think of it in a positive way. If you had no feeling of fear you would do new things a lot, and change can be good. BUT in a way fear can also keep you safe by not doing something stupid and getting hurt or even killed. SO yes feelings can hold you back but sometimes that can be a good thing.