10 Things I Hope We Learn from John Piper's Leave of Absence

John Piper has taught me much over the years. I consider it an honor to count him as a friend, and I am deeply saddened by his recent announcement that he will be taking a leave of absence for the remainder of 2010. In explaining his leave of absence, he writes:

The difference between this leave and the sabbatical I took four years ago is that I wrote a book on that sabbatical (What Jesus Demands from the World). In 30 years, I have never let go of the passion for public productivity. In thi...