This one is airmanship,
"Airmanship is the cornerstone of pilot competency. Competency has been defined as the combination of knowledge, skills and attitude required to perform a task well or to operate an aircraft safely — in all foreseeable situations.
It’s not in this one but I’m not sure what is meant by the word “art” as in the art and science of navigation (or whatever) seems to mean more or less the same as “deep understanding”