Keller - "Learn biblical doctrine...for your health."
From Tim Keller at The Gospel Coalition blog:
We live in an age in which the very word doctrine, or worse, dogma, is a negative term. And yet it is simply impossible to live without doctrinal beliefs. While many do not want to use the term, all people—secular as well as religious—treat some views as horrific heresies. I've encountered churches that claim, "We don't teach doctrine, we just preach Jesus." But the moment you ask, "Well, who is Jesus, and what did he do?" they can only answer by beginning to lay out doctrine.
Read the entire article...for your health.