Tā sīxiǎng yīnxúnshǒujiù, hěn nán jiēshòu xīn shìwù.
His thinking is stuck in the old ways, and he has a hard time accepting new things.
Tips
history
From the Han Shu (《汉书·循吏传序》): 光因循守职，无所改作 - Huo Guang 'stuck to the old duties and made no changes.' Originally more neutral ('preserving tradition'); in modern use it's a criticism of failing to innovate.
usage
Pejorative. Common in business, education, and policy discourse. Opposite: 推陈出新 (push out the old, bring forth the new) or 与时俱进 (keep pace with the times).
