He who dose not know one thing knows another.

I thing that the proverb means that there is something that you don't  know but you are good on something else. No one is perfect every one has there weakness  and there strengths.

Example:
If you are not good at Math maybe you are good  in English.

I chose this mask because i thing that is really  cool and it has a really good expression and also the colors
are naturals  there are not fake.

That mask is telling me that they where where it when they where angry,or when they where dancing around the fire, and they where telling story's.