a mere common brick to draw others into throwing in their pieces of jade
Brick of jade, Chinese idiom, Pinyin is y ǐ NY ù zh ī Zhu ā n, which means to show modesty. It refers to shallow and immature opinions expressed in order to elicit other people's wise opinions. From the biography of lanterns in Jingde.
The origin of Idioms
Shi Daoyuan's Jingde Zhuandeng Lu (Volume 10) in Song Dynasty said: "recently, I have thrown a brick to attract jade, but I have got a pendant."
Idiom usage
It's an object; it's an object. What we have is just a brick to draw jade from. On new democracy by Mao Zedong
a mere common brick to draw others into throwing in their pieces of jade
death of a young beautiful girl - xiāng xiāo yù suì
One slap won't make a sound - yī gè bā zhǎng pāi bù xiǎng