A connection between the tongue and heart

When you get angry, your mouth just reveals what’s inside your heart. A harsh tongue reveals an angry heart. A negative tongue reveals a fearful heart. A boasting tongue reveals an insecure heart. An overactive tongue reveals an unsettled heart. A judgmental tongue reveals a guilty heart. A critical tongue reveals a bitter heart. A filthy tongue reveals an impure heart. On the other hand, an encouraging tongue reveals a happy heart, a gentle tongue reveals a loving heart, and a controlled tongue reveals a peaceful heart. - Rick Warren.