须发皆白 grey hair and beard
Explanation
形容人年老，头发和胡须都白了。
Describes a person who is old, and whose hair and beard have turned white.
Origin Story
村子里住着一位名叫李成的老人，他年轻时饱读诗书，对人生充满热情与希望。然而，岁月如梭，转眼间，李成已年过花甲。他经历了人生的风风雨雨，也见证了时代的变化，如今，他的须发皆白，但这并不能磨灭他对生活的热爱。他依然坚持每天早起读书，用知识丰富自己的人生。有时候，他会坐在院子里，看着孩子们嬉戏玩耍，脸上总是挂着慈祥的微笑。他的须发皆白，却依然精神矍铄，如同历经沧桑的古树，散发着岁月的沉淀和智慧的光芒。
In a village lived an old man named Li Cheng. In his youth, he had diligently studied and was full of passion and hope for life. However, time flew by, and in the blink of an eye, Li Cheng was over sixty years old. He had experienced the ups and downs of life and witnessed the changes of the times. Now, in his old age, his hair and beard were white, but this did not extinguish his love for life. He still insisted on getting up early every morning to read, enriching his life with knowledge. Sometimes, he would sit in the courtyard, watching the children playing, always with a kind smile on his face. His hair and beard were white, but he was still energetic and vigorous, like an old tree that had weathered the storms of time, exuding the sedimentation of years and the brilliance of wisdom.
Usage
常用于描写老年人的外貌特征，也可用以表达岁月流逝、时光荏苒的含义。
Often used to describe the appearance of the elderly, it can also be used to express the passage of time.
Examples
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老者须发皆白，精神矍铄。
lǎozhě xūfà jiē bái, jīngshen juéshuò
The old man's hair and beard are completely white, but he is still full of energy.
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他一生清贫，如今须发皆白，依然坚守着心中的信念。
tā yīshēng qīngpín, rújīn xūfà jiē bái, yīrán jiānshǒuzhe xīnzōng de xìniàn
He lived a poor life, and now he is old, with his beard and hair all white. However, he remains firm in his beliefs.
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这位老先生须发皆白，却依然神采奕奕，精神抖擞。
zhè wèi lǎoxiānsheng xūfà jiē bái, què yīrán shéncǎi yìyì, jīngshen dǒusǒu
The old man's hair and beard are all white, but he is still vigorous and full of life.