Yet the men who framed this declaration were great men—high in literary acquirements—high in their sense of honor, and incapable of asserting principles inconsistent with those on which they were acting. –Dred Scott v. Sandford,
Supreme Court of the United States

How does Taney use this appeal to emotion to support his argument?

The appeal praises the virtues of the writers of the document Taney uses as evidence.
The appeal relies on his original claim that Dred Scott is not a citizen and cannot sue in a federal court.
The appeal counters Taney’s claim that people’s origins dictate their status in the community.
The appeal creates doubt about the validity and soundness of the Constitution in terms of defining citizenship.

The way Taney use this appeal to emotion to support his argument is:

This refers to the appeal to emotion which is usually used as a persuasive tool to get someone to do something.

With this in mind, we can see that pathos is used by Taney as he praises the virtues of the writers of the document which he is using as evidence.

Read more about emotional appeal here:
link

The appeal praises the virtues of the writers of the document Taney uses as evidence.

Explanation:

I'm right agai

each year on this day, i make it a point to listen to dr. martin luther king jr.’s great “i have a dream” speech. it’s electrifying every single time.

the content of dr. king’s speech, his inspiring presence, and the moment in history all came together to make the iconic “i have a dream” speech the defining moment of the american civil rights movement. but there are several other reasons why this speech, delivered over 50 years ago, remains an example of one of the best speeches in american history.

since part of my job is to people become better presenters, i’ve noticed several techniques that we can all learn from and be inspired by in this magnificent speech.

it’s anchored in a powerful related location

in most cases, you can’t handpick the spot to give a presentation, as mlk did for supreme symbolic effect when he stood on the steps of the lincoln memorial and echoed the opening words of the gettysburg address (“five score years ago . . ). but you absolutely can amplify your message by adapting it to your setting and location.