When the only tool you have is a hammer, every problem looks like a nail.
On Earth, man had always assumed that he was more intelligent than dolphins because he had achieved so much - the wheel, New York, wars and so on, whilst all the dolphins had ever done was muck about in the water having a good time. But conversely, the dolphins had always believed that they were far more intelligent than man - for precisely the same reasons. -HHGTTG
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty. -Winston Churchill