This poem reads very quickly and in a regular rhythm in large part because of the end rhyme (sometimes called "sight rhyme"). For example, consider the rhymes found at the ends of the first six lines: lose/choose, retain/brain, dead/head. As one reads the poem aloud, one almost naturally emphasizes the last word of each line, and picks up the next line continuing the rhythm. It is not unlike the rhythm established in Henry Wadsworth Longfellow's classic poem, "The Midnight Ride of Paul Revere", which, if read aloud, almost begins to convey the clippity-clop of a horses hooves as the end rhymes follow one after another in quick succession, two lines at a time. End rhyme is a way to keep a poem moving, where a poem with a free verse structure, for example, may be set up with pauses in the middle of sentences, and often has no rhyme at all.