Sagacity, unlike cleverness, may increase with age.

　　睿智與聰明不同，前者可與年齡俱增。

　　She gazed up at him, blinking once or twice, apparently surprised at his cleverness.

　　她抬頭注視著他，偶爾才眨一下眼睛，顯然對他的聰明才智頗為驚訝。

　　He often brags about his cleverness.

　　他常常吹噓自己的聰明才智。

　　To be together all day long and never talk about fundamentals but take pleasure only in showing one's cleverness& indeed it's a hopeless case!

　　群居終日，言不及義，好行小慧，難矣哉。（《論語》）