Gossip needn't be false to be evil - there's a lot of truth that shouldn't be passed around.
I plead for conservation of human culture which is much more fragile than nature herself. We needn't destroy other cultures with the force of our own.
Your computer needn't be the first thing your see in the morning and the last thing you see at night.
An artist needn't be a clergyman or a churchwarden but he certainly must have a warm heart for his fellow men.
Presidential leadership needn't always cost money. Look for low- and no-cost options. They can be surprisingly effective.