Duì hélǐ de jiànyì yě shēnbìgùjù, shìqíng hěn nán bàn.
Closing oneself off even to reasonable suggestions makes things hard to solve.
Tips
history
From 《汉书·楚元王传》 (Book of Han, Biography of Liu Xiang). Liu Xiang criticized scholars who were 深闭固距 (拒) — sealed deep and firmly refusing — to even test classical texts they hadn't memorized, blocking the spread of learning.
register
Literary, formal. Common in essays and editorials about people who refuse to engage with ideas, criticism, or change. Not used in casual speech.
