Why do you think arthur and his knights make such compelling heroes?

What is the roosevelt’s main purpose in this speech

And his eyes have all the seeming of a demons that is dreaming which of these poetic devices is used here?

[he] let his gaze wander to the swirling water of the stream racing madly beneath his feet. a piece of dancing driftwood caught his attention and his eyes followed it down the current. how slowly it appeared to move! what a sluggish stream! what contrasting words are used to describe the stream in this passage?