why does Judith admire John Holbrook?

Judith admired John for his intelligence and good looks.

"His learning is incredible," he told her. "He can recite entire chapters of Scripture, and he knows law and medicine as well."

Walking back along the road Judith signaled Kit to fall behind the others. "You never mentioned that there was a handsome man on that boat," she whispered accusingly.

But Judith's attention was not wandering. She was studying, with deliberate appraisal, John Holbrook's bent head and the delicate chiseled line of his profile against the firelight.