⁵ Advice comes from the deep waters of the heart;
    those with understanding can draw it out.

¹⁸ Plans are firmed up by advice;
    wage wars with good guidance.

⁹ Don’t speak in the ears of fools,
    for they will scorn your insightful words.

⁹ Oil and incense make the heart glad,
    and the sweetness of friends comes from their advice.^[a]