《世说新语·言语》
顾悦回答说： 蒲柳的资质差，一到秋天就凋零了；松柏质地坚实，经历过秋霜反而更加茂盛。 
对曰： 蒲柳之姿，望秋而落；松柏之质，经霜弥茂。 
Gu Yue answered: “Willow and cattail have poor qualities and wither as soon as autumn comes; pine and cypress have sturdy material and, after going through autumn frost, they become even more luxuriant.”