The faults of character and defects in personality which bar advancement in the quest will also bar advancement in other spheres of human life. Being in him, they will inevitably bring their results on the physical plane in the course of time. They will manifest themselves in his business or career, his home or social relations. It is not too much to say, therefore, that the self-improvement brought about by the quest's discipline will be to his advantage in other ways.
-- Notebooks Category 6: Emotions and Ethics > Chapter 1: Uplift Character > # 107