ㄗㄨㄛˋˊㄌㄨㄣˋㄉㄠˋzuò’érlùndào

坐而论道
  1. 王公大臣隨侍帝王議論政事脫離現實空談大道 教改不能只是坐而論道」。

to sit and pontificate; to find answers through theory and not through practice (idiom)​