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.