"What your actual solution is is unimportant as long as it has Quality. Thoughts about the screw as combined rigidness and adhesiveness and about its special helical interlock might naturally lead to solutions of impaction and use of solvents.
That is one kind of Quality track. Another track might be to go to the library and look through a catalog of mechanic's tools, in which you might come across a screw extractor that would do the job. Or to call a friend who knows something about mechanical work. Or just to drill the screw out, or just burn it with a torch. Or you might just, as a result of your meditative attention to the screw, come up with some new way of extracting it that has never been thought of before and that beats all the rest and is patentable and makes you a millionaire five years from now. There's no predicting what's on that Quality track. The solutions all are simple – after you have arrived at them. But they're simple only when you know already what they are."
– Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance