Appetite stewardship

I am listening to a Podcast right now by Andy Stanley and he is talking about how to manage spending.  He states that the more aware we are of what we do not have, the more discontent we will be.  He also states that the more we feed our appetite for more, the more our appetite will grow.  He states the only way to make our appetites smaller is to feed them less.  Sometimes, I think our appetites make us believe that if we just "eat a little more" we will be fulfilled.  However, we know that is not true.  The more we eat the more we want. 

We have to be stewards of our appetites.