Don't do unto others what you don't want others to do unto you.
Baseball is wrong, man with four balls cannot walk
Before you embark on a journey of revenge, dig two graves.
He who cannot describe the problem will never find the solution to that problem.
In language clarity is everything.
Look not at what is contrary to propriety; listen not to what is contrary to propriety; speak not what is contrary to propriety; make no movement which is contrary to propriety.