Short Answer 
Ethos is an appeal to ethics and credibility that establishes a speaker’s authority, crucial for effective persuasion. Martin Luther King Jr. exemplified this in his ‘I Have a Dream’ speech by showcasing his qualifications as a civil rights leader, which fostered trust and motivated the audience to engage with his vision, inspiring collective action for justice and equality.
Step 1: Understanding Ethos
Ethos refers to an appeal to ethics and credibility in communication. It establishes the speaker’s authority and trustworthiness to persuade the audience effectively. In the context of famous speeches, especially in social movements, ethos plays a crucial role in gaining the audience’s confidence to engage with the message being conveyed.
Step 2: Martin Luther King Jr.’s Use of Ethos
In his iconic ‘I Have a Dream’ speech, Martin Luther King Jr. utilizes ethos by highlighting his qualifications and personal experiences. He strategically mentions his role as a respected leader in the civil rights movement, which fosters a sense of trust among listeners. This technique solidifies his position as an advocate worthy of attention and respect.
Step 3: Impact of Ethos on the Audience
By establishing his credibility, King not only captivates the audience but also motivates them to embrace his vision. The effective use of ethos creates a connection that encourages listeners to reflect on their own beliefs and actions. Consequently, King’s message resonates on a deeper level, inspiring collective action towards justice and equality.