When you work on things that matter to you, you have endless energy and persistence. But when you work to impress others, you can get tired and give up. The greatest benefit is that working on things that matter to you makes you feel fulfilled; there are many people who are rich but depressed.
Extrinsic motivation doesn’t last long.
Research shows that children don’t stop playing with toys when they’re told to; they stop playing when they’re shown that it is bad to play with toys, because that is when children actually want to stop.
Work on things that matter to you in order to harness intrinsic motivation.
To accomplish great things in life, choose to work on those things that really matter to you.