emerson quote finish each and be done with it you have done what you could. some blunders and absurdities have crept in, forget them as soon as you can. tomorrow is a new day. begin it serenely high spirit old nonsense
Intrinsic motivation is the first step to succeeding and being engaged in something that you are interested in. As pink says, people that are intrinsically motivated are more likely to keep doing it rather than someone who was only doing it for a reward.