Elaborate virtues of houyhonms

In Jonathan Swift's satirical travel novel Gulliver's Travels, his title character travels last to the land of the Houyhnhnms. In his previous travels, Gulliver has come across Lilliput, a land where everyone is tiny compared to himself; Brobdignag, a place where everyone is gigantic compared to himself; and Laputa, a strange world of clouds, philosophers, and misguided experiments. All of the characters in these lands have been human, though different from Gulliver in some fundamental way. When he travels to the land of the Houyhnhnms, however, Gulliver is met with a race of horses who rule over a savage race of yahoos (the humans in this scenario).
Foremost among the traits that Gulliver observes and admires in the Houyhnhnms are their rationality and their love of peace. Gulliver describes these horses as "orderly and rational." They can speak, they can explain themselves, and they choose to live simply and without conflict. The main source of trouble in this land is the yahoo population. The yahoos are described as dirty and barbaric. The Houyhnhnms look down on them and treat them like the animals they seem to be. Gulliver finds himself seeing humans in the same way the horses see them; he does not want to be associated with yahoos, and he even has a hard time returning to life in England because he is so disgusted by humankind. He does hope, however, that readers can learn some of the virtues of the Houyhnhnms, who serve as Gulliver's ideal.