Know any good quotes for pottery signs?

I love fun quotes that give us something to think about. If you know any short quotes good for signs, email them to me please.
I plan to make:

Be nice or leave.
Back off I'm a goddess
and a few more Unitarian quotes.

Any ideas? I would love some good suggestions.
claylady00@aol.com

or leave a comment (comments are edited but I will get to it!)