The quote reads "Never permit failure to become a habit." - W.J. Book
LOVED this quote as well! Too often when I mess up something I'm trying to change in my life I figure I'm done. My poor drawing represents mountains - the peaks and valleys we go through in life and is meant to show that when in the valley we should pick ourselves up and head to the top again.
The words along the bottom and right side read: Climb every mountain ~ The little engine that could - Do not wallow in the valleys.