七月流火，九月授衣。一之日觱发，二之日栗烈。无衣无褐，何以卒岁?· In seventh moon Fire Star west goes; | In ninth to make dress we are told. | In eleventh moon the wind blows; | In twelfth the weather is cold. | We have no warm garments to wear. | How can we get through the year?
(“The Seventh Moon”，The Book of Poetry [Compiled in the Spring and Autumn Period])