Short Answer 
Roosevelt aimed to unite the public through a sense of collective responsibility, using the phrase “we must” to foster teamwork during difficult times. His use of anaphora emphasized his message, making it impactful and memorable, which in turn encouraged the audience to respond with a call to action.
Step 1: Understanding the Purpose
President Roosevelt aimed to motivate the public to unite and take action. His use of the phrase “we must” served to create a sense of collective responsibility. This was crucial in fostering a spirit of teamwork and solidarity among the citizens during a challenging time.
Step 2: The Technique of Anaphora
Anaphora, a rhetorical device, involves the repetition of phrases at the beginning of sentences. In his speech, Roosevelt effectively employed this technique to reinforce his message. By repeating “we must,” he not only emphasized the importance of the actions he advocated but also made his ideas more impactful and memorable for his audience.
Step 3: Impact on the Audience
The repetition in Roosevelt’s address significantly influenced the audience’s perception and response. Key terms and phrases became ingrained in listeners’ minds, encouraging them to internalize the message. The unified appeal ignited a call to action within the public, making them feel empowered to tackle challenges together.