These six, O king, comprise the happiness of men, viz., acquirement of wealth, uninterrupted health, a beloved and a sweet-speeched wife, an obedient son, and knowledge that is lucrative. He that succeedeth in gaining the mastery over the six that are always present in the human heart, being thus the master of his senses, never committeth sin, and therefore suffereth calamity.

In plain words: Vidura says six things make up human happiness: earning wealth, lasting health, a loving wife who speaks kindly, an obedient son, and knowledge that helps you earn. Someone who masters the six inner enemies in his heart controls his senses, does not sin, and so avoids disaster.