[Published by Mrs. Shelley, "Posthumous Poems", 1824.
There is a fair draft amongst the Boscombe manuscripts.]
I.
The flower that smiles to-day
To-morrow dies;
All that we wish to stay
Tempts and then flies.
What is this world's delight?
Lightning that mocks the night,
Brief even as bright.
II.
Virtue, how frail it is!
Friendship how rare!
Love, how it sells poor bliss
As with the other  stanzas , the rhyme scheme is ABABCCC. However, stanza II takes on a more dramatic tone of complaining, especially indicated by the exclamation points–though there is eventual acceptance in the last three lines. 
 Finally, stanza III utilizes the poetic technique of  anaphora  to emphasize the consistency in inconsistency of life, also giving the stanza a dream-like state–which we figure out in the end,  is  a “dream”.
Mutability II The flower that smiles today...