history: Working as a nurse, there are many times when I have been worried about my patients. Sometimes when a patient is just starting to get seriously ill, there are not any obvious signs, but my intuition is almost always correct. Intuition can be a key tool to a seasoned nurse.  I suppose_comma_ but research and concrete knowledge is more beneficial as it is a very hands on and physical occupation_comma_ especially when the health of others are in their hands.
current: Those are very beneficial tools as well but sometimes experience plays a large part in patient outcomes. 
next: That is true. There are many situations where experience can strengthen your skills compared to just learning it from a book.