If you think you can or cannot accomplish a task, you will be correct in either case.
If you think you can or ...
Quotes from the same author
A business that makes nothing but money is a poor business.
Whether you think you can or you think you can't, you are right.
My best friend is the one who brings out the best in me.
Quality means doing it right when no one is looking.
Obstacles are those frightful things you see when you take your eyes off your goal.