Every culture has its proverbs. Here are examples.
- He who at thirty has no brains, will never purchase an estate.
- He who has to deal with a blockhead has need of much brains.
- Borrowed brains have no value.
- When brains are needed, brawn won’t help.
- Many complain of their looks, but none of their brains.
- You'll never plough a field by turning it over in your mind.
- You don't see the brain on one’s forehead.