A man void of understanding strikes hands, and becomes collateral in the presence of his neighbor. He who loves disobedience loves strife. One who builds a high gate seeks destruction. One who has a perverse heart doesn’t find prosperity, and one who has a deceitful tongue falls into trouble. He who becomes the father of a fool grieves. The father of a fool has no joy. A cheerful heart makes good medicine, but a crushed spirit dries up the bones.