Answer:
Old age and autumn.
Explanation:
In William Shakespeare's "Sonnet 73", the poet focuses on theme of growing old and dying. The poem has 14 lines, with the quatrains dealing with different stages of a man's aging process.
The given lines are from the first quatrain of the poem where the speaker talks about the "yellow leaves [.......] which shake against the cold". He uses metaphors to imply to his old age, like the season of autumn where the leaves of trees begin to fall. Thus, the first quatrain gave a comparison of autumn and old age.
