During the early years of Magnum PI, when fame arrived faster than comfort, Selleck found himself navigating pressure he had never known. Garner became a sounding board during those formative moments, reminding him that success meant little if it cost one’s humanity. Garner believed in treating everyone on set with the same respect, from producers to crew members, and that philosophy left a lasting impression. Selleck absorbed those lessons not as lectures, but as lived behavior, watching how Garner carried himself with ease, humility, and quiet authority.