The second recurrent theme is self-control, in general holding oneself inward when it comes to speaking, eating and bodily emissions. When it comes to speaking, "Be careful to whom, what, why and when you speak". He suggests it is better to keep your thoughts to yourself. When it comes to eating, he suggests small bites, not overeating, not playing with food, no using fingers to clean bowls. Also, guests and servants should not urinate in the dining hall, but the host may.