Running through things because you are familiar with them, breeds routine and this is the seed of boredom.
“If I didn't want to work for a couple of years, I wouldn't have to-it's a great feeling, to know I'm doing it because I want to do it.”
“The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair.”