This document provides advice on positive and negative words by listing words of increasing length and their meanings. The most selfish one-letter word is "I", while the most satisfying two-letter word is "WE". The most poisonous three-letter word is "EGO", and the hardest working seven-letter word is "SUCCESS". Overall, the document encourages focusing on positive words like "SMILE", "LOVE", and "CONFIDENCE" rather than negative words like "EGO" and "JEALOUSY".