What is the name of the poem written by He Xiaoyu and Liang in the 25th episode of No War in Peiping?

Chen's poem A Wild Flower

A wild flower

A wild flower opened and fell in the wilderness.

Don't think about this little life, smile at the sun,

God gave him wisdom, and he knew it.

His joy, his poetry, swayed in front of the wind.

A wild flower opened and fell in the wilderness.

He saw spring, but he couldn't see his own smallness.

Accustomed to the gentleness of the wind, accustomed to the roar of the wind,

Even his own dreams are easy to forget.