旦為朝雲，

暮為行雨

dàn wéi zhāo yún， 

mù wéi xíng yǔ.

‘At dawn I am morning clouds 

At dusk i am evening rain’

Song Yu (298 BCE-263 BCE), Song Yu (Chinese: 宋玉); was a Chinese poet from the late Warring States period, and is known as the traditional author of a number of poems in the Verses of Chu (Chu ci 楚辭).