...and don't waste your time with this cat. let go.

from Ptah Hotep (3500 BCE KMT):

If you encounter a disputant in action
Who is an equal to you, your peer,
You will cause your excellence to surpass him by SILENCE,
when he is speaking wrongly.

Great is the discussion among the Hearers,
Your name is good in the estimation of the Great Ones.

HERE'S THE HIEROGLYPHS FOR IT:
http://members.aol.com/mwhealton/pthp4.gif