Focus on strengths instead of weakness

Just listened to another set of adudio tapes these couple of days: "Now, Discover your strengths". I haven't finished the tapes yet, but there's something interesting learned: it's better to focus on strenghs than weakness. Do only enough damage control on weakness so it won't hinder the development your strength. But strengths are the ones that let you excel. It makes sense, it would be a lot more rewarding investing time on something you are good at.