依然故我 remain unchanged
Explanation
依然故我指的是一个人或事物依旧保持原来的样子，没有改变。通常含有贬义，表示固执、不思进取。
Yiran guwo refers to a person or thing that remains the same without any changes. Usually it carries negative connotations, meaning stubbornness and lack of ambition.
Origin Story
老张是一位经验丰富的木匠，他几十年如一日，每天都坚持在工作台上制作精美的木雕。他从未想过要学习新的雕刻技术，也拒绝尝试任何现代化的工具。他的儿子小李劝他学习新的技术，以便能适应市场的变化，但是老张依然故我，认为传统的手工技艺才是最好的。最终，小李独自学习了新的雕刻技术，并创办了自己的工作室，而老张依然坚持着他的老方法，尽管生意越来越难做。
Old Zhang was an experienced carpenter who had been working for decades. Every day, he would insist on making exquisite wood carvings on his workbench. He had never considered learning new carving techniques, nor did he want to try any modernized tools. His son, Xiao Li, advised him to learn new techniques to adapt to market changes, but Old Zhang remained unchanged, believing that traditional craftsmanship was the best. Finally, Xiao Li independently learned new carving techniques and started his own workshop, while Old Zhang still insisted on his old methods, even though his business became increasingly difficult.
Usage
依然故我通常用于形容人，表示其思想、行为或习惯等没有变化，多含贬义。
Yiran guwo is typically used to describe a person, indicating that his thoughts, behavior, or habits have not changed, often with a negative connotation.
Examples
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他依然故我，生活没有发生任何改变。
ta yiran guwo, shenghuo meiyou fasheng renhe gaibian.
He remained the same, his life has not changed at all.
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尽管环境变化很大，但他依然故我，坚持自己的原则。
jinguang huanjing bianhua hen da, dan ta yiran guwo, jianchi zijide yuanze.
Despite the great changes in his environment, he remained the same, upholding his principles.