Silence is the best answer to the stupid.
More Egyptian Proverbs:
Run as hard as a wild beast if you will, but you won't get any reward greater than that destined for you.Egyptian
Cover up the good you do -- do like the Nile and conceal your sources.
Egyptian
Learn politeness from the impolite.
Egyptian
Whoever lets himself be led by the heart will never lose his way.
Egyptian
Better half a donkey than half a camel.
Egyptian
Friendship doubles joy and halves grief.
Egyptian