牖中窺日yǒu zhōng kuī rìpeer at the sun through a window—fail to see the truth (/real facts)
? 北人看書如顯處視月，南人學問如～。(劉義慶《世說新語·文學》) 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. |