Professional

"Alas - then what is yours?" I pressed on.

"My consideration is simple," L explained, "Take the medical profession as an example. Even though one may be working in a field that he is interested in, it is rather unlikely that he would love each and every aspect of the field."

"What do you mean?"

"Say, if you are inspired by the renowned professor of that green medical school and become a gastroenterologist and love the subject very much, it remains most probable that you may not like the entire subject. People who like lumenal disease often find metabolic liver disease boring. People who prefer to read up nucleoside analogs probably do not enjoy handling endoscopy. A brilliant clinician may be mad when being called in the middle of the night to treat a patient with massive hematemesis..."

"I see what you mean: An amateur can focus on the aspect that he feels interest in and forget about the rest. As a genuine gastroenterologist, however, one must perform up to the standard even in aspects that he finds repugnant."