1 it's all very well to talk, but getting things done is another matter (idiom)
2 to be an armchair expert
3 to blabber on
胯下之辱
kuà xià zhī rǔ
1 lit. the humiliation of having to crawl between the legs of one's adversary (as Han Xin 韓信|韩信[Hán Xìn] supposedly did rather than engage in a sword fight) (idiom)
2 fig. utter humiliation
腰缠万贯
yāo chán wàn guàn
1 lit. ten thousand strings of cash in money belt (idiom); carrying lots of money
2 extremely wealthy
3 loaded
腰金衣紫
yāo jīn yī zǐ
1 golden seal at the waist, purple gown (idiom); in official position
点头哈腰
diǎn tóu hā yāo
1 to nod one's head and bow (idiom); bowing and scraping