Ah Mao: If you are destined to be a caterpillar that cannot become a butterfly in this life, then why bother trying your best to tear apart the last thing worth cherishing.
Shangguan: If all that can fly are the colorful butterflies that have broken out of their cocoons, and my thoughts have turned into cocoons, and my wings have been broken, I can give up all my searches, just for the only thing in this life that is worthy of my nostalgia.