Virtue, repeatedly practised, enhanceth intelligence; and the man whose intelligence hath increased, repeatedly practiseth virtue. The virtuous man, by practising virtue, goeth to regions of blessedness. Therefore, a man should, firmly resolved, practise virtue. He that is envious, he that injureth others deeply, he that is cruel, he that constantly quarreleth, he that is deceitful, soon meeteth with great misery for practising these sins.

In plain words: Doing good again and again makes you wiser, and a wiser person keeps doing good. So you should firmly choose to do good. People who are envious, cruel, hurtful, always fighting, or deceitful soon end up in great misery.