The most important lesson that I have learned is to trust God in every circumstance. Lots of times we go through different trials and following God's plan seems like it doesn't make any sense at all. God is always in control and he will never leave us.
No matter how much success you're having, you can't continue working together if you can't communicate.
The problem with Bush is that yes, he's religious in a fundamentalist sort of way, they read the Old Testament as a sort of charter for the chosen people to do what they like.