“He who attempts to act and do things for others or for the world without deepening his own self-understanding, freedom, integrity, and capacity to love, will not have anything to give to others. He will communicate to them nothing but the contagion of his own obsessions, his aggressiveness, his ego-centered ambition, his delusions about ends and means.”
Thomas Merton
(read here)
One Blessed Fool's Way to Happiness 