This document discusses powerful words to use or avoid in life. It identifies "I" as the most selfish one-letter word to avoid, "WE" as the most satisfying two-letter word to use, and "EGO" as the most poisonous three-letter word to kill. It also notes that "LOVE" is the most used four-letter word to value, "SMILE" is the most pleasing five-letter word to keep, and "RUMOUR" is the fastest spreading six-letter word to ignore.