People whoare too concerned with how well they are doing will be less successful andfeel less competent than those who focus on the task itself... Somepsychologists call it a conflict between egoorientation, or between extrinsicand intrinsic motivation...
Bythree methods we may learn wisdom: first, by reflection, which is noblest;second, imitation, which is easiest; and third by experience, which is thebitterest.