I have never thought about this. I have been trying to think about how to sum up the way I live and I why I live it but it's difficult to condense. So here is my super long motto. Maybe later I can make it more succinct.
Follow the prophet, trust God, live your beliefs, set a good example, be smart, be kind, and be honest. Be grateful for what you have and happy in your circumstances. Work hard to get where you want to go and be flexible if that isn't where you are meant to go. Be brave and love.