Cast not pearls to swine.
More Korean Proverbs:
The nicest woman is your own; the nicest harvest is your neighbors.Korean
Man's affairs are evaluated only after his coffin is closed.
Korean
There is no flower that lasts ten days and no might lasts ten years.
Korean
If you want a well, only dig in one place.
Korean
Tall branches are apt to be broken.
Korean
A physician's neighbor is never a doctor.
Korean