'Humility' by Andrew Murray by far is the most valuable book I have EVER read and will forever be on my book shelf. The lack of humility in my life is without a doubt is the cause of most if not ALL of my personal life problems. Until I read this book I had no idea just how much pride ruled me. Pride must be the one sin God hates the most yet all of mankind has been ruled by it from before He created man as pride is the reason Lucifer was cast out of Heaven and became Satan. I agree that humility is the chief grace of God yet so little taught. I also believe that this book should be part of any discipleship plan.