Constantly looking over our shoulder at what others are doing takes our eyes off what’s ahead of us. Then our goals are set not by what’s possible or relevant but by what someone else is doing. In that case, we’re not even setting our goals; someone else is. A preoccupation with comparision pushes us to measure success against acomplishments that have little or nothing to do with what we’re uniquely suited for. Envy is a strong motivator but a weak navigator.

David Marcum, Steven B. Smith — Egonomics