There is a good blog post about finding what inspires you at this blog:
http://www.getmotivatedstaymotivated.com/blog/motivation-on-demand/
The post is an extract from the book "Motivation On Demand by Peter W.Murphy" which I recently released at Amazon.com.
In particular, the post discusses the common misconception that people are lazy when in fact the problem is that they have impotent goals.