What distinguishes a truly knowledgeable person from someone who is merely 'learned' but lacks peace?

Chapter 17 makes a critical distinction between being 'learned' and being truly endowed with knowledge. Someone can be learned but still be wallowing in sinful deeds, restless, and distracted by the greed of the senses, thus finding no peace. In contrast, a truly knowledgeable person is one whose mind is satisfied, who is a well-behaved 'son of the Guru,' and whose focus on the Self is unwavering. This person is the master of their own 'chariot,' demonstrating self-control through practice rather than just empty talk. True knowledge is inseparable from a calm mind and right action.