"Obedience is the great test of life" by Thomas S. Monson

I think this quote means is that getting advice form others is a way of improving.The hardest thing about life is to follow directions.This also applies to sports, if you follow the directions of your coach you are more likely to win.In school you must do what your teacher ask you to pass the class.If you follow the law you are being obedient and won't get into trouble.