司空图在《诗品》中说:好诗“使味之者无极,闻之者动心。”的确,读好诗后,就象吃过橄榄之后,香甜可口,回味无穷。其所以这样,这与诗的含蓄有关。而含蓄与浅露相对,浅露的诗,一览无余,读时,象喝白开水似的,清淡寡味。因此,姜白石说:“诗歌语贵含蓄。”吴乔说:“诗 Sikong figure said in “Poetry” that a good poem “makes people who are eclectic, and those who are sensation are tempted.” Indeed, after reading a good poem, it is like eating olives, which is sweet and delicious and has a long aftertaste. This is why it is related to the implicitness of poetry. The implicit and shallow poetry, which is subtle and shallow, has a glance at all. When reading, it resembles drinking plain water. Therefore, Jiang Baishi said: “The poetry is expensive and subtle.” Wu Qiao said: "Poetry