What is the word that describes people who can only talk?

Commentary: An armchair strategist. Metaphor is empty talk, which can't solve practical problems. It is also a metaphor that empty talk cannot become a reality.

From Sima Qian's Biographies of Historical Records, Lian Po and Lin Xiangru in the Western Han Dynasty: Zhao Kuo, the son of Zhao She, a famous soldier of Zhao in the Warring States Period, studied the art of war when he was young, but his father could not beat him in military affairs. Later, he succeeded Lian Po as Zhao Jiang in the Battle of Changping. I only knew how to act according to the art of war, but I didn't know how to be flexible. As a result, I was defeated by Qin Jun.

Grammar: formal; As predicate, object and attribute; With a derogatory connotation.

Extended data:

antonym

Work hard [mái tóu kǔ gàn]?

Explanation: concentrate on your efforts.

Said by: Lu Xun, have China people lost confidence? There have been people who have been working hard since ancient times.

No matter what difficulties he meets, he always works alone.

Grammar: compact; As predicate, attribute and adverbial; With praise.