Many years ago two salesmen were sent by a shoe company to Africa to find out if there was a market for shoes.
The first salesman reported back, "There is no market there - nobody wears shoes."
The second salesman reported back, "There is huge market there - nobody wears shoes." You can look at the same situation in two different ways - negatively or positively.
The first salesman looked at it as a problem; the second one looked at it as an opportunity. Next time we face a problem, let us ask ourselves "how can I do it?", rather than simply saying "it can't be done."