There's a story which goes along the following lines:
A reporter was sent to a stone cutter to interview three men doing exactly the same thing - hammering stones.
When asked how he liked his job, the first one said: "I really hate it. I hardly make a dollar to get by. I am doing the same stuff over and over, my back is giving me grief, I'm getting older and sorer by the day and I see no sense at all in what I am doing."
The second man responded to the same question saying: "It's okay - I have a pretty good house, a car that gets me around and a loving family. However, my job is not my dream and it is not that inspiring."
The third man replied:"I absolutely love my job. I am thrilled to be here every day and I appreciate the opportunity.