Don Quixote continues to advise Sancho on his appearance. He tells Sancho to mind his appearance and not to be slovenly. He should know the income of his office and provide for his servants. Don’t eat foul smelling food that will stink up his breath. Walk slowly and speak meaningfully, but don’t be affected. Don’t be a glutton or drink too much. Be careful how you chew and don’t belch.
Sancho is trying to commit all this to memory. He realizes he will have to work on some things he does very well—like belching.
Quixote tells him to stop speaking in proverbs. He tells him how to ride a horse, and advises him not to sleep too much. Be ambitious. He should never discuss the lineage of families. He tells Sancho what he should wear.
Sancho is grateful for the advice but doesn’t think he can keep it all in his head. Quixote tells him he needs to learn how to read and write. Sancho tells him he can write his own name, and someone can sign for him.
Quixote prophesies that Sancho’s habit of using proverbs will drive his people to rebellion. He is advising him because if Sancho governs poorly, it reflects badly on Quixote. Quixote has doubts about Sancho’s ability to govern. His squire points out it was Quixote who first promised him a governorship. However, if his master thinks he will be a bad governor, he'll give up the post. He would rather serve in Heaven than be a governor in Hell.
Quixote tells Sancho he has natural instincts. If he follows God, he can't be steered wrong.