17
A heart fixed on thoughtful understanding is like an engraved ornament on a smooth wall.
18
A protective barrier set on a high place will never endure against the wind. So a timid heart backed up by a fool's plan will never endure against any fear.
19
Whoever pricks an eye will make tears flow, and whoever pricks a heart reveals its feelings.
20
Whoever throws a stone at birds scares them off, and whoever insults a friend breaks up a friendship.
21
If you draw a sword on a friend, don't despair, because there can be a way back.