A closed mind is like a closed book; just a block of wood

Similar sayings:

Unplowed fields make hollow bellies; unread books make hollow minds Unplowed fields make hollow bellies; unread books make hollow minds
Love is blind, friendship closes its eyes Love is blind, friendship closes its eyes
A good dog does not block the road A good dog does not block the road
No matter how tall the mountain, it cannot block out the sun No matter how tall the mountain, it cannot block out the sun
The broad-minded see the truth in different religions; the narrow-minded see only the differences The broad-minded see the truth in different religions; the narrow-minded see only the differences

Chinese sayings and proverbs