I read this great quote on Seth Godin's blog. Although he was discussing marketing I thought it more than applied to human resources.

"But the art of management is in understanding that all problems are different, and that your intuition and insight are the key."

This piggybacks very well on the blog from yesterday. Reading, education, and a variety of experiences will help develop that intuition and insight you need to have to deal with the variety of problems you deal with on a daily basis.