Obedience 

"Obedience is central to becoming, being,

 and remaining happy." 

-David Bednar 

I like this quote because its true if you obey you can be happy. If you listen to the good things that people say that can help you in the future then you will start to become happy and one day youll notice that since that day that you started being obedient you started to become happy and since that day you have lived happy all your life. I think that this quote can really be useful in life, i would definitely start to use it.