peer at the sun through a window—fail to see the truth (/real facts) ? 北人看書(shū)如顯處視月，南人學(xué)問(wèn)如～。(劉義慶《世說(shuō)新語(yǔ)·文學(xué)》) The reading of the Northerners is like viewing the moon in a bright place,while the erudition of the Southerners is like peering at the sun through a window.