17. Do not allow your mouth to become accustomed to undisciplined speech. For in this, there is the sin of words.
18. When you sit in the midst of great men, remember your father and mother.
19. Otherwise, God may forget you, when you are in their sight, and then you would be repeatedly ridiculed and would suffer disgrace, and you might wish that you had never been born, and you might curse the day of your nativity.