The most selfish 1 letter word - I - avoid it.
The most satisfying 2 letter word - We - use it.
The most poisonous 3 letter word - Ego - kill it.
The most used 4 letter word - Love - value it.
The most pleasing 5 letter word - Smile - keep it.
The fastest spreading 6 letter word - Rumour - ignore it.
The hardest working 7 letter word - Success - achieve it.
The most enviable 8 letter word - Jealousy - distance it.
The most powerful 9 letter word - Knowledge - acquire it.
The most essential 10 letter word - Confidence - trust it.