Everyone needs motivation to work. Motivation brings about an equilibrium b/w ability to work and will to work.
So what do you works better-
1. External Motivation? (egs :- Parents promosing to buy you a bike if you score well in 12th boards / Better salary for better work.)
OR
2. Internal Motivation? (eg :- trying to out do yourself / indulging yourself in a spa if you achieve goals set by yourself etc)
Preets