What does the heart of a fool is in his mouth but the mouth of a wise man is in his heart mean?

The phrase "the heart of a fool is in his mouth but the mouth of a wise man is in his heart" suggests that foolish individuals often speak without thinking, letting their emotions or impulsive thoughts dictate their Words. In contrast, wise individuals tend to reflect deeply before speaking, valuing thoughtful expression over impulsive chatter. Essentially, it highlights the importance of discernment and introspection in communication.