What does the dialogue teach readers about Manjiro’s attitude towards the barbarians

What effect is achieved by the use of the phrase "as the devil would have it" in the second sentence?

Read the passage: canines may not be the deepest thinkers in the world. but perhaps that's for the best. the life of a dog—sitting alone all day, waiting for everyone to come home—can be pretty boring. super-smart animals would probably get totally stressed out, says university of pennsylvania researcher james serpell. look at it this way: if dogs were any smarter, they probably wouldn't choose to hang around with us. which best describes the tone of the passage?

Which link would readers of this dictionary entry click if they wanted more information about the historical origins of the word language