“Though natural likings should normally be encouraged, it would be quite wrong to think that the way to become charitable is to sit trying to manufacture affectionate feelings…The rule for all of us is perfectly simple. Do not waste time bothering whether you ‘love’ your neighbor; act as if you did. As soon as we do this we find one of the great secrets: When you are behaving as if you loved someone you will presently come to love him.” – C.S. Lewis, Mere Christianity (130-131).
I first read this in early 2006 and it has always stuck with me as a worthwhile principle. Sometimes the best way to stir up the desire to do something – be it loving our neighbor, evangelism, prayer, reading, exercising, doing work – is simply to start doing it!