Wisdom of Ben Sira 31:17-19

New Catholic Bible

¹⁷ Be the first to stop eating, as befits good manners,
    and do not be a glutton, lest you give offense.
¹⁸ If you are dining with a large group,
    do not reach out your hand before the others.
¹⁹ A small portion is sufficient for someone of good upbringing;
    when he lies down, he experiences no discomfort.