779 <br /> <br />The Service without Hope— <br />Is tenderest, I think— <br />Because 'tis unsustained <br />By stint—Rewarded Work— <br /> <br />Has impetus of Gain— <br />And impetus of Goal— <br />There is no Diligence like that <br />That knows not an Until—<br /><br />Emily Dickinson<br /><br />http://www.poemhunter.com/poem/the-service-without-hope/