Don'ts and cannots...

Don't make a thing someone else's bread and butter simply because it is an essential part of you or your business - except if it is possible to take antibiotics on behalf of someone else’s infection.

Don't ever let your desire to be the first to know everything or to be on top of things tempt you into seeking to damage someone else's reputation, especially with untruths.

Don't hate a thing simply because it is done by someone you don't like and you cannot pass over a wrong just because it is committed by someone you like.

You cannot right your wrongs by refusing to admit their being and don't give good reason for a sin by finding partners in it; it will still be a sin even if the entire universe conspires to do it.

To paraphrase Benjamin Franklin Fairless, don't try to strengthen yourself by weakening another man, because you cannot add to the stature of a dwarf by cutting off the leg of a giant.