It’s frustrating, uncomfortable, and even painful — but it separates those who achieve from those who don’t. I’m talking about deliberate practice.

Why do some “really talented people” never seem to achieve what they or we think they should? And some, with seemingly less talent, experience great achievement? The answer rests, in part, on Angela Duckworth’s psychology of achievement; particularly her achievement equation.

All goals are not created equal. Warren Buffett can help you figure out which ones need your highest attention.