I'm trademarking the letter E. It appears repeatedly in my name and I use it in virtually all of my sentences.
I'm charging a royalty for using it.
Seriously, ideas are the last thing we
should try to make private property. An idea is one of the things we can exchange most profitably.
"If you have an
apple and I have an
apple and we exchange these apples,
then you and I will still each have one apple.
But if you have an idea and I have an idea and we exchange these ideas,
then each of us will have two ideas."
- George Bernard Shaw