The chengyu "follow every step" comes from the Tian Zifang chapter of the Zhuangzi.
Tips
usage
A student of 子贡, he opens the 庄子 chapter sitting beside 魏文侯, so it takes his name. The same chapter gives 望尘莫及, from 颜回's complaint that Confucius races ahead and leaves him staring after the dust.
