Can a person who is 'learned' but lacks discrimination find peace, according to the teachings in Chapter 17?

No, according to the teachings in Chapter 17, being 'learned' is of no benefit if one lacks discrimination and self-control. The text poses a rhetorical question: what is the benefit of a learned person who wallows in sinful deeds prohibited by the Vedas and does not know right from wrong? It further elaborates that someone who is always restless, whose heart is unsatisfied, and whose mind is constantly distracted by the greed of the senses will not find peace, even with knowledge. This highlights that true wisdom, or Shreya, involves more than just intellectual learning; it requires moral discrimination and control over one's inner tendencies.