鼠目寸光 [- mù cùn ɡuānɡ]The eyes of a rat can see only an inch of light — short-sighted; A mouse can see only an inch.; as short-sighted as mice; can't see (an inch) beyond one's (own) nose; see no further than one's nose; see only what is under one's nose:
•¶ 只有鼠目寸光的人才会看不见教育的重要性。 Only a short-sighted man will lose sight of the importance of education.