"My son, keep your father's command and do not forsake your mother's teaching. Bind them always on your heart; fasten them around your neck. When you walk, they will guide you; when you sleep, they will watch over you; when you awake, they will speak to you." -Proverbs 6:20-22

Your parents teach you because they love you, but they also discipline you because they love you, so don't take anything you learn from your parents for granted. Besides, one day you will be teaching those very things to your own children.