The poem "The Road Not Taken" was written by Robert Frost. The main theme of this poem is as follows: Life is made up of a series of choices or paths. The speaker must choose which path to take. His life experience will be based on what depending on what choices he made.The poem "The Seven Ages of Man" was written by William Shakespeare. It is written in free verse and is a narration of a man's life from birth to death. This poem is chronological in its narration. Both poems use powerful symbolic images to portray life and man's response to life.