Obedience 
"When obedience becomes our goal, it is no longer an irritation; instead of a stumbling block, it becomes a building block."
                                    James E. Faust

Reflection: this quote means that when set a goal stick with that goal and you will complete that goal in life. If  you don't stick with your goal you wouldn't be able to complete it. Also if you are being obedient you won't trip over building blocks, if you are being disobedient you will trip over the building blocks.

Example of quote: if you set your goal and stick with it you will succeed in life. If  you don't complete it you probably not succeed in life.