Inaction breeds doubt and fear - Dale Carnegie

Inaction breeds doubt and fear. Action breeds confidence and courage. If you want to conquer fear, do not sit home and think about it. Go out and get busy. - Dale Carnegie 

 Do the thing you fear to do and keep on doing it... that is the quickest and surest way ever yet discovered to conquer fear. - Dale Carnegie 

 Happiness doesn't depend on any external conditions, it is governed by our mental attitude. - Dale Carnegie 

 Instead of worrying about what people say of you, why not spend time trying to accomplish something they will admire. - Dale Carnegie