Tim Keller recently brought forth a few gems from Martin Lloyd-Jones concerning doctrine and living. This is one particular quote I found challenging and yet refreshing:
It seems to me that we have a right to be fairly happy about ourselves as long as we have criticism from both sides… For myself, as long as I am charged by certain people with being nothing but a Pentecostalist and on the other hand charged by others with being an intellectual, a man who is always preaching doctrine, as long as the two criticisms come, I am very happy. But if one or the other of the two criticisms should ever cease, then, I say, is the time to be careful and to begin to examine the very foundations.
You would be well served to read the entire article.