The Man Who Has Left All

"The only man who has the right to say that he is justified by grace alone is the man who has left all to follow Christ."- Bonhoeffer, The Cost of Discipleship

I read this quote in the book I'm currently reading, Don't Waste Your Life by John Piper, which I would highly recommend. You can download and read FOR FREE. You can read any John Piper book for free at his website. Here's Don't Waste Your Life:

http://www.desiringgod.org/ResourceLibrary/onlinebooks/bytitle/1593_Dont_Waste_Your_Life/
But be warned, it will probably make you evaluate all of your selfish motivations for any of your life/career pursuits.