Most important letters

Most Selfish 1 Letter
"I"Avoid it.
Most Satisfactory 2 Letters"We"
Use it.
Most Poisonous 3 Letters"Ego" Kill it.
Most Used 4 Letters
"Love"
Value it.
Most Pleasing 5 Letters
"Smile"
Keep it.
Fastest Spreading 6 Letters
"Rumour"
Ignore it.
Hardworking 7 Letters
"Success"
Achieve it.
Most Enviable 8 Letters
"Jealousy"
Distance it.
Most Powerful 9 Letters "Knowledge"
Acquire it.
Most Divine 10 Letters "Friendship"
Maintain it.