Zhè piān wénzhāng zhèngběnqīngyuán, chéngqīng le xǔduō lìshǐ wùjiě.
This article traces things back to the source and clears up many historical misconceptions.
Tips
history
Recorded in 《汉书·刑法志》 as 清原正本 and in 《晋书·武帝纪》: '思与天下式明王度,正本清源。' — the emperor's call to reform at the fundamentals rather than patching symptoms.
usage
Formal register, common in editorial and policy writing. The companion idiom 标本兼治 (treat both symptoms and root) is often used alongside to balance 'radical fix' with 'immediate fix'.