God, give me courage to do what I can, humility to admit what I can't, and wisdom to know the difference.
There are two messages from theory of Karma. Our condition in this life is determined by our deeds in previous life. We must do good in this life to improve our conditions in next life.
One of the many ways of managing peers is to knock them down so heavily, whenever we find them on their wrong foot, that they loose the courage of raising their voice when we are wrong.